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Fraction Calculator

Add, subtract, multiply, or divide two fractions. The calculator returns the result in reduced form, as a decimal, and as a mixed number.

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Results

Result -
Decimal -
Mixed number -

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How it works

Addition and subtraction use a common denominator. Multiplication goes straight across. Division inverts the second fraction and multiplies. Every result is reduced to lowest terms and shown as a decimal and a mixed number.

Reducing: the numerator and denominator are divided by their greatest common divisor. The result is simplest form, which means no further reduction is possible.

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FAQs

How do you add fractions?

Convert both fractions to a common denominator, add the numerators, then reduce to lowest terms. The calculator handles all three steps.

How do you divide fractions?

Multiply the first fraction by the reciprocal of the second (flip the second fraction, then multiply). The calculator applies this automatically.

What is a mixed number?

A whole number combined with a proper fraction, like 1 1/2. The calculator shows this form when the result is an improper fraction.

How do you reduce a fraction?

Divide the numerator and denominator by their greatest common divisor. The result cannot be reduced further.

Can it handle negative fractions?

Yes. Enter a negative numerator and the calculator handles it correctly.