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Fraction Calculator

Calculate with fractions and mixed numbers like 1 1/2. The answer is simplified automatically and shown as a fraction, a mixed number and a decimal, with the working shown.

Free · No sign-up · Files stay on your device

How to use Fraction Calculator

  1. 1Enter the first fraction, e.g. 3/4 or 1 1/2.
  2. 2Choose +, −, × or ÷.
  3. 3Enter the second fraction and read the simplified answer.

Features

  • Fractions, mixed numbers and whole numbers
  • Add, subtract, multiply, divide
  • Automatic simplification
  • Mixed number and decimal answers
  • Step-by-step working

How fractions are calculated

To add or subtract, fractions are given a common denominator first. To multiply, multiply the tops and the bottoms. To divide, multiply by the reciprocal of the second fraction. The result is then simplified by dividing top and bottom by their greatest common divisor.

Frequently asked questions

How do I enter a mixed number?

Type the whole number, a space, then the fraction: 2 3/4.

Can I use negative fractions?

Yes, e.g. -3/4.

How do I just simplify a fraction?

Multiply it by 1, e.g. 18/24 × 1 = 3/4.

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