Fraction Calculator
Add, subtract, multiply, or divide two fractions and get the answer in lowest terms.
Fraction
Add, subtract, multiply, or divide two fractions.
Result
5/6
- Decimal: 0.833333
How it works
Enter the numerator and denominator of each fraction, then choose an operation. Use whole numbers only.
Fractions are combined using whole-number arithmetic, then the result is reduced by dividing the top and bottom by their greatest common divisor. Answers larger than 1 also show as a mixed number.
Denominators cannot be zero, and you cannot divide by a fraction that equals zero. Negative fractions are entered with a negative numerator.
Formula
a/b + c/d = (a×d + c×b) ÷ (b×d)
a/b − c/d = (a×d − c×b) ÷ (b×d)
a/b × c/d = (a×c) ÷ (b×d)
a/b ÷ c/d = (a×d) ÷ (b×c)
Worked example: 1/2 + 1/3 = 5/6