Does it simplify results automatically?

Yes, all arithmetic results are automatically reduced to lowest terms.

Can I convert a decimal to a fraction?

Yes, use the Decimal ⇄ Fraction tab to convert either direction.

Are negative fractions supported?

Yes, negative numerators and denominators are handled correctly.

Fraction Calculator

Add, subtract, multiply, divide, and simplify fractions.

Works Offline

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No Login

No API

Fraction Calculator

Arithmetic, simplification, and decimal conversion

Numerator 1

Denominator 1

Operator

Numerator 2

Denominator 2

Result

Updates live

Arithmetic result

5 / 6

As decimal

0.83333333

Simplified

3 / 4

Fraction from decimal

3 / 4

About the Fraction Calculator

Perform arithmetic on fractions, simplify any fraction to lowest terms, and convert freely between decimals and fractions.

Examples

1/2 + 1/3

1/2 + 1/3

Output

5/6

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser