Math · Simplified results

Fraction calculator

Add, subtract, multiply or divide two fractions and get a simplified answer.

Fractions

Negative numbers allowed. Denominators can't be zero.
Result
—
Simplified fraction
Decimal—

Rough sheet

step-by-step
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How fraction operations work

Addition and subtraction first convert both fractions to a common denominator, then combine the numerators. Multiplication multiplies numerators and denominators directly, and division multiplies by the reciprocal of the second fraction. Every result is automatically reduced to lowest terms by dividing both numerator and denominator by their greatest common divisor.

Frequently asked questions

Yes. The calculator reduces every result to its lowest terms using the greatest common divisor, so you always get the simplest form.

Yes, both the numerator and denominator accept negative values, and the sign is normalized automatically in the result.