Fraction Calculator
Add, subtract, multiply and divide fractions exactly, with no rounding. Mixed numbers are supported, the answer is reduced to its simplest form, and every step of the working is shown so you can follow the method.
How to Use
Enter the numerator and denominator of each fraction, plus a whole number if you are using a mixed number. Pick an operator and the answer appears with the full working: the common denominator, the converted numerators, the arithmetic, and the final simplification.
- Exact rational arithmetic — no floating-point rounding
- Mixed number input and output
- Step-by-step working shown
- Automatic simplification via the greatest common divisor
- Decimal equivalent alongside the fraction
Why exact arithmetic matters
Computers store decimals in binary, so values like one third cannot be represented precisely. This calculator keeps the numerator and denominator as whole numbers throughout and only converts to a decimal at the very end, which is why the result is always exact.
Related Calculators
You might also need
Tools from other categories that people pair with the Fractions: