Add, subtract, multiply, divide and simplify fractions and mixed numbers, with every step shown
Leave empty to simplify the first.
Whole is optional: fill it in for a mixed number like 2 1/3, or use it alone for a whole number.
Type a fraction to see the result and every step.
Two fractions are calculated, one on its own is simplified.
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The Fraction Calculator adds, subtracts, multiplies and divides fractions, mixed numbers and whole numbers, and gives the answer in lowest terms. Every step is written out: converting mixed numbers, finding the least common denominator, rewriting each fraction over it, and reducing by the greatest common divisor. The result also comes as a mixed number, a percent and an exact decimal with the repeating digits marked, so 7/12 shows as 0.583 with a bar over the final 3.
The guide behind this tool
Why 1/3 Never Ends: Fractions, Decimals and Common Denominators
1/8 ends after three digits and 1/3 never does. The prime-factor rule behind terminating decimals, why 1/7 cycles through six digits, and why 0.1 + 0.2 misbehaves.
Type the first fraction, numerator on top and denominator below. Fill in Whole as well for a mixed number such as 2 1/3.
Pick +, −, × or ÷ and enter the second fraction. Leave it empty to simplify the first fraction on its own.
Read the result in lowest terms, with the mixed number, decimal and percent beside it.
Follow the numbered steps to see how it was worked out, then copy the fraction or the decimal.
Put the whole part in Whole and the fraction in Numerator and Denominator, so 3 1/4 is 3, 1 and 4. For a negative mixed number, put the minus sign on the whole part: −3 1/4 means −(3 + 1/4), which is −13/4.
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