## World's simplest number tool

Quickly calculate the sum of fractions in your browser. To get the sum, just enter your list of fractions in the input field, adjust the separator between the numbers in the options below, and this utility will count all these fractions. Created by developers from team Browserling.
we wrote the curl cookbook!
Super exciting news – we just wrote the Curl Cookbook full of organic, nutritious, and completely irresistible curl recipes. Check it out!
Input and Output
Enter the symbol that delimits the input fractions.
Display a sequence of partial cumulative sums.
Reducing and Fraction Type
Reduce the output sum fraction to the lowest terms. (E.g. 2/4 → 1/2 or 6/3 → 2.)
If the numerator is larger than the denominator, leave the fraction unchanged. (E.g. 5/3 or ⁹⁄₂.)
If the numerator is larger than the denominator, extract the integer part before the fraction. (E.g. 5/3 → 1 + 2/3.)
Decimals and Fraction Format
Display decimal value next to the fractional sum.
Use only 7-bit ASCII symbols to represent fractions. (E.g. 1/2 or 1_2/3.)
Use superscript and subscript Unicode symbols to represent fractions. (E.g. ¹⁄₂ or 1²⁄₃.)
Fraction adder tool What is a fraction adder?
This is an online browser-based program for calculating the sum of a bunch of fractions. It takes two or more fractions of the form "a/b" and "c/d", where "a" and "c" are numerators and "b" and "d" are denominators, and calculates their common denominator by finding the least common multiple (LCM) of "b" and "d". It then changes both fractions to have the same LCM denominator and adds both numerators. By default, it also reduces the resulting fraction to its simple form by dividing both numerator and denominator by their greatest common factor (GCF). If you don't want to reduce the fraction, just uncheck the "Simplify Fraction" option. When the numerator is larger than the denominator, you have two choices – you can display the fraction in an improper form or convert it to a mixed fraction that is a sum of an integer number plus a proper fraction. You can also select the output format for fractions – they can be printed as 7-bit ASCII characters, for example, 1/2, 5/3, or 1 + 2/5, or they can be printed as Unicode superscript and subscript glyphs that look nicer, for example, ¹⁄₂, ⁵⁄₃, or 1²⁄₅. You can add up any number of fractions by entering each fraction on a new line. If the fractions are separated by a comma or a semicolon, then you can change the sequence format by setting the input delimiter to the symbol that separates fractions. The input fractions can be proper (numerator < denominator), improper (numerator > denominator), or mixed (a whole number and a proper fraction together). When working with mixed fractions, use the formats "c+a/b", "c_a/b", or "c a/b" (where c is the whole part). This tool also works integers (for example, 2, 5, -10) and decimals (for example, 0.2, 1.5, -3.4). To see how the resulting total changes when more and more fractions are added together, use the "Running Sum" option, which displays partial sums during the calculation. Also, as it's not always instantly obvious how large is a fraction, you can activate the "Show Decimal Value" option, which shows the exact or approximate decimal value next to the fraction. That's numberwang!
Fraction adder examples Click to use
This example adds two proper fractions: 1/2 and 1/6. First, it finds the least common multiple (LCM) of denominators, which is 6. Then it multiplies the first term by 3/3 to have the same denominator as in the second term: (3/3)×(1/2) = 3/6. Finally, it adds the numerators of both terms: (3 + 1)/6 = 4/6. As the simplify-fractions option is activated here, the utility also reduces the fraction by 2 and returns it in ASCII format as 2/3.
1/2 1/6
2/3
Required options
These options will be used automatically if you select this example.
Enter the symbol that delimits the input fractions.
Display a sequence of partial cumulative sums.
Reduce the output sum fraction to the lowest terms. (E.g. 2/4 → 1/2 or 6/3 → 2.)
If the numerator is larger than the denominator, leave the fraction unchanged. (E.g. 5/3 or ⁹⁄₂.)
Display decimal value next to the fractional sum.
Use only 7-bit ASCII symbols to represent fractions. (E.g. 1/2 or 1_2/3.)
Cumulative Sum
In this example, we add an improper negative fraction and two proper positive fractions. As you can see, the fractions are input as a series of addends. To process them, we set the input separator to "+" to correctly separate all three numbers. To show all steps of fraction summation, we activate the "Cumulative Sum" option and use the "Show Decimal Value" option to display the decimal floating-point values of results. We have deactivated the "Simplify Fraction" option here and you can see the total sum as an improper fraction with the common denominator of all three fractions.
-4/3 + 5/6 + 3/4
-4/3 (-1.33333) -3/6 (-0.5) 3/12 (0.25)
Required options
These options will be used automatically if you select this example.
Enter the symbol that delimits the input fractions.
Display a sequence of partial cumulative sums.
Reduce the output sum fraction to the lowest terms. (E.g. 2/4 → 1/2 or 6/3 → 2.)
If the numerator is larger than the denominator, leave the fraction unchanged. (E.g. 5/3 or ⁹⁄₂.)
Display decimal value next to the fractional sum.
Use only 7-bit ASCII symbols to represent fractions. (E.g. 1/2 or 1_2/3.)
In this example, we calculate the sum of proper, improper, and mixed fractions, as well as regular integer and decimal numbers. We display the partial sum using the sup and sub Unicode characters. We reduce all fractions to their simplest form and extract the whole part before the fraction where the numerator is greater than the denominator.
5/6 7/5 2+1/6 -5 0.8
⁵⁄₆ 2⁷⁄₃₀ 4²⁄₅ -³⁄₅ ¹⁄₅
Required options
These options will be used automatically if you select this example.
Enter the symbol that delimits the input fractions.
Display a sequence of partial cumulative sums.
Reduce the output sum fraction to the lowest terms. (E.g. 2/4 → 1/2 or 6/3 → 2.)
If the numerator is larger than the denominator, extract the integer part before the fraction. (E.g. 5/3 → 1 + 2/3.)
Display decimal value next to the fractional sum.
Use superscript and subscript Unicode symbols to represent fractions. (E.g. ¹⁄₂ or 1²⁄₃.)
Pro tips Master online number tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
All number tools
Didn't find the tool you were looking for? Let us know what tool we are missing and we'll build it!
Quickly create a list of numbers in arithmetic series.
Quickly create a list of numbers in geometric series.
Quickly calculate the coefficients of the binomial expansion.
Quickly create a downloadable image from numbers.
Quickly create a list of random numbers.
Quickly create a list of random primes from a specific interval.
Quickly create a matrix with random numbers as its elements.
Quickly create a random row or column vector.
Quickly exchange rows and columns of a matrix.
Quickly find the inverse matrix of any square matrix.
Quickly find the determinant of any square matrix.
Quickly calculate any number of digits of number π.
Quickly generate the specified number of Euler constant's digits.
Quickly generate any number of golden ratio digits.
Quickly generate numbers of say what you see sequence.
Quickly calculate numbers of Fibonacci sequence.
Quickly calculate numbers of Lucas series.
Quickly generate Fibonacci-like series with custom start values.
Quickly calculate members of a linear recurrence series.
Quickly create a sequence of prime numbers.
Quickly check if the given number is a prime.
Quickly compute all prime factors of a number.
Quickly compute all divisors of a number.
Quickly calculate the GCD of two or more numbers.
Quickly calculate the LCM of two or more numbers.
Quickly create a list of increasing or decreasing integers.
Quickly create a sequence of even numbers.
Quickly create a sequence of odd numbers.
Quickly create a list of squares.
Quickly create a list of cubes.
Quickly generate a series of numbers in the form 2^n.
Quickly generate a series of numbers in the form 10^n.
Quickly choose one or more numbers from a list of numbers.
Quickly round one or more numbers to the given accuracy.
Quickly sort numbers in ascending or descending order.
Quickly sort number's digits in ascending or descending order.
Quickly randomize the order of digits in a number.
Quickly filter numbers according to certain criteria.
Quickly add up all the numbers in the given list and find their sum.
Quickly multiply all the numbers together and find their product.
Quickly add up all the digits of the given numbers.
Quickly multiply all the digits of the given numbers.
Quickly sum up all the fractions in the given list and find their total.
Quickly find the largest number in a number sequence.
Quickly find the smallest number in a number sequence.
Quickly create a diagonal matrix with ones on the main diagonal.
Quickly spell cardinal and ordinal numbers using English words.
Quickly convert spelled numbers to regular numbers.
Quickly convert a number to the form 2^x.
Quickly express a number in the form 10^x.
Quickly convert base 10 numbers to base -10.
Quickly convert a number from one base to any other base.
Quickly convert simple fractions to pretty Unicode fractions.
Quickly add digits to a number so that it becomes a palindrome.
Quickly test if the given numbers are palindromes.
Coming soon These number tools are on the way
Generate Numberwang Numbers
Create a list of numberwang numbers.
Rewrite Numbers
Given numbers and a grammar, recursively rewrite them.
Create a Floating Point Number
Create a number from the mantissa, base and exponent.
Visualize a Floating Point Number
Show how a fp number is represented in a computer.
Convert a Number to the Scientific Notation
Convert a number to the a*10^b form.
Convert Scientific Notation to a Number
Convert a number in scientific notation to a regular number.
Generate Symbolic Numbering
Create a list of alphabetic numbers (a, b, c, …, z, aa, ab, …).
Generate Roman Numbering
Create a list of Roman numbers (i, ii, iii, iv, v…).
Generate Braille Numbering
Create a list of Braille numbers (⠂, ⠆, ⠒, ⠲, ⠢, …).
Generate Random Binary Numbers
Create a list of random binary numbers.
Generate Random Octal Numbers
Create a list of random octal numbers.
Generate Random Decimal Numbers
Create a list of random decimal numbers.
Generate Random Hex Numbers
Create a list of random hexadecimal numbers.
Calculate a Running Sum
Calculate a cumulative sum of a list of numbers.
Calculate a Running Product
Calculate a cumulative product of a list of numbers.
Calculate the Factorial
Find the factorial of a number.
Create Number Anagrams
Create one or more anagrams of a number.
Generate Number Bigrams
Create a list of digit bigrams from a number.
Generate Number Trigrams
Create a list of digit trigrams from a number.
Generate Number N-grams
Create a list of digit ngrams from a number.
Generate a Polynomial Sequence
Create a list of polynomial progression numbers.
Generate SI Prefixes
Create a list of metric prefixes.
Analyze a Number
Report how many digits appear how many times.
Convert a Number to an Ordinal
Convert a cardinal number to an ordinal number.
Convert an Ordinal to a Number
Convert an ordinal number to a cardinal number.
Convert a Number to Roman Number
Convert Arabic numerals to Roman numerals.
Convert a Roman Number to Regular Number
Convert Roman Numerals to Arabic numerals.
Generate Negafibonacci Numbers
Calculate a series of extended Fibonacci numbers.
Generate Fibonacci Primes
Find numbers that are both Fibonacci numbers and primes.
Fibonacci Number Test
Check if a number is a Fibonacci number.
Fibonacci Prime Test
Check if a number is both a Fibonacci number and a prime.
Construct Fibonacci Words
Create a sequence of Fibonacci words.
Construct Tribonacci Words
Create a sequence of Tribonacci words.
Generate Negalucas Numbers
Calculate a series of extended Lucas numbers.
Generate Lucas Primes
Calculate a series of extended Lucas numbers.
Lucas Prime Test
Check if a number is both a Lucas number and a prime.
Calculate the Trace of a Matrix
Find the sum of main diagonal elements of a matrix.
Calculate the Eigenvalues of a Matrix
Find the eigenvalues of a matrix.
Multiply Matrices
Compute the product of two matrices.
Compute the sum of two matrices.
Subtract Matrices
Compute the difference of two matrices.
Generate Moser de Bruijn Numbers
Calculate a sequence of Moser-Bruijn numbers.
Generate Kolakoski Numbers
Calculate a sequence of Oldenburger-Kolakoski numbers.
Generate Stanley Numbers
Calculate a sequence of Stanley numbers.
Generate Gijswijt Numbers
Calculate a sequence of self-describing Gijswijt numbers.
Generate Rudin-Shapiro Numbers
Calculate a sequence of Rusin-Shapiro numbers.
Generate Baum-Sweet Numbers
Calculate a sequence of Baum-Sweet numbers.
Generate Thue-Morse Sequence
Calculate members of Thue-Morse number series.
Generate Perfect Numbers
Create a list of perfect numbers.
Generate Almost Perfect Numbers
Create a list of almost perfect numbers.
Generate Excessive Number Sequence
Calculate a sequence of abundant numbers.
Generate Deficient Number Sequence
Calculate a sequence of deficient numbers.
Calculate Dragon Curve Numbers
Generate a list of paperfolding sequence numbers.
Generate Composite Numbers
Create a list of numbers that are not prime.
Draw a Numbers Table
Generate a table of numbers.
Test if a Number is Perfect
Check if the given number is a perfect number.
Test if a Number is Abundant
Check if the given number is an abundant number.
Test if a Number is Deficient
Check if the given number is a deficient number.
Calculate the Modulo
Find the modulus of a number.
Group Number Digits
Group together digits of a number.
Split a Number into Digits
Create a list of digits from a number.
Printf Numbers
Apply sprintf or printf function to numbers.
Create Zalgo Numbers
Let Zalgo destroy your numbers.
Repeat a Number
Repeat a number multiple times.
Mirror a Number
Create a mirror copy of a number.
Add zeros to a number.
Reverse a Number
Reverse the order of digits of a number.
Rotate a Number
Cyclically rotate digits of a number to the left or right.
Increase a Number
Add one to the given number.
Increase All Digits in a Number
Add one to every digit in a number.
Decrease a Number
Subtract one from the given number.
Decrease All Digits in a Number
Subtract one from every digit in a number.
Find Patterns in Numbers
Discover patterns in sequences of numbers.
Count Number Occurrences
Find how often numeric values occur.
Calculate Percentages
Find x% of a number.
Generate Big Numbers
Create a list of big numbers.
Generate Small Numbers
Create a list of small numbers.
Generate Natural Numbers
Create a list of natural numbers.
Generate Rational Numbers
Create a list of rational numbers.
Generate Constant Sequence
Create a series of numbers where all terms are the same.
Generate Real Numbers
Create a sequence of real numbers.
Generate Complex Numbers
Create a list of complex numbers.
Generate Binary Numbers
Create a sequence of binary numbers.
Generate Pairs of Numbers
Create a sequence of number pairs.
Generate Triples of Numbers
Create a sequence of number triples.
Generate Tuples of Numbers
Create a sequence of number n-tuples.
Interweave Numbers
Interweave two or more number digit-by-digit.
Find the Decimal Expansion of a Number
Rewrite a number in the decimal representation.
Convert a Fraction to a Decimal
Convert a fraction to a decimal number.
Convert a Decimal to a Fraction
Convert a decimal number to a fraction.
Convert a Binary Number to Octal Number
Convert a base two number to base eight number.
Convert a Binary Number to Decimal Number
Convert a base two number to base ten number.
Convert a Binary Number to Hex Number
Convert a base two number to base sixteen number.
Convert a Octal Number to Binary Number
Convert a base eight number to base two number.
Convert a Octal Number to Decimal Number
Convert a base eight number to base ten number.
Convert a Octal Number to Hex Number
Convert a base eight number to base sixteen number.
Convert a Decimal Number to Binary Number
Convert a base ten number to base two number.
Convert a Decimal Number to Octal Number
Convert a base ten number to base eight number.
Convert a Decimal Number to Hex Number
Convert a base ten number to base sixteen number.
Convert a Hex Number to Binary Number
Convert a base sixteen number to base two number.
Convert a Hex Number to Octal Number
Convert a base sixteen number to base eight number.
Convert a Hex Number to Decimal Number
Convert a base sixteen number to base ten number.
Convert Any Number to Any Base
Convert any number in any base to any other base.
Change Number's Mantissa
Change the significand of a number.
Change Number's Exponent
Change the power of a number.
Replace Digits with Letters
Replace digits in a number with alphabet letters.
Create a Number Spiral
Form a spiral from the digits of a number.
Remove Decimal Point
Remove the decimal separator from a decimal number.
Numberwang Number Test
Test if the given number is numberwang.