Fraction Calculator

Add, subtract, multiply and divide fractions with simplified results.

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How to compute with fractions

  • Add / subtract: put both fractions over a common denominator, then add or subtract the numerators.
  • Multiply: multiply the numerators and the denominators.
  • Divide: multiply by the reciprocal of the second fraction.

The result is then reduced to lowest terms by dividing by the greatest common divisor, and shown as a decimal and a mixed number.