Fraction Calculator
Calculate with two fractions and get an exact answer in lowest terms. The result is also shown as a mixed number when it is larger than 1, and as a decimal.
Whole numbers only, up to 12 digits each. Negative numbers are allowed.
Fill in both fractions to see the result.
How to use the fraction calculator
- Enter the numerator (top) and denominator (bottom) of the first fraction.
- Choose the operation.
- Enter the second fraction and read the simplified result.
Worked examples
Adding
1/2 + 1/3 = 3/6 + 2/6 = 5/6.
Subtracting
3/4 − 5/6 = 9/12 − 10/12 = −1/12.
Dividing
2/3 ÷ 4/9 = 2/3 × 9/4 = 18/12, which simplifies to 3/2, or 1 1/2.
Good to know
- Numerators and denominators must be whole numbers with up to 12 digits. To enter a mixed number like 2 1/3, convert it first: 2 × 3 + 1 = 7, so enter 7/3.
- Results are exact. Decimals that repeat forever, like 1/3, are shown rounded and marked with ≈.
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