Maths & numbers
Fraction calculator
Add, subtract, multiply or divide exact fractions.
A clear answer. Here’s how.
Integer fractions are calculated exactly using BigInt, then reduced by the greatest common divisor. Denominators cannot be zero. The decimal approximation is rounded.
See a worked example
Worked example
A fixed demonstration, separate from the values you enter above.
- First numerator
- 1
- First denominator
- 3
- Operation
- Add (+)
- Second numerator
- 1
- Second denominator
- 6
Example result
- Simplified fraction
- 1/2
- Decimal approximation
- 0.5