Fraction calculator

Add, subtract, multiply, divide and simplify fractions

  • Runs in your browser
  • Free
  • No sign-up
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How to use it

  1. Enter your numbers.
  2. The result updates as you type.
  3. Change any value to see a different outcome.

Questions

How do I add fractions with different denominators?

Find a common denominator, convert both fractions, then add the numerators. 1/3 + 1/6: the common denominator is 6, so 2/6 + 1/6 = 3/6, which simplifies to 1/2.

How do I divide fractions?

Multiply by the reciprocal of the second one. 1/2 ÷ 3/4 = 1/2 × 4/3 = 4/6 = 2/3.

Is anything I enter stored?

No. Calculations happen in your browser and nothing you type is sent or saved.

Is it free?

Yes, you can use it for free. A subscription removes limits and unlocks premium tools.