Online Fraction Calculator
Add, subtract, multiply or divide two fractions and get the answer in lowest terms alongside its decimal value. Enter something like 1/2, or a whole number — the arithmetic all happens locally in your browser.
- 100% free
- Private & safe
- Runs in your browser
Why use Fraction Calculator?
Fraction Calculator gives you accurate results instantly, with the underlying formula shown so you can trust the numbers.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Handles Fractions are combined then reduced by their greatest common divisor.; Result also shown as a decimal..
- Enter the first fraction (e.g. 1/2).
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use Fraction Calculator
- Enter the first fraction (e.g. 1/2).
- Choose an operation: +, −, × or ÷.
- Enter the second fraction.
- See the simplified result and its decimal equivalent.
Examples
- 1/2 + 1/3 = 5/6.
- 3/4 ÷ 2/5 = 15/8.
Formulas
- Fractions are combined then reduced by their greatest common divisor.
- Result also shown as a decimal.
Limitations
- Enter fractions as a/b or whole numbers.
- Division by a zero fraction is guarded.
Frequently asked questions
What input format is accepted?
Fractions like 3/4, or whole numbers like 5.
Is the result simplified?
Yes — results are reduced to lowest terms and also shown as a decimal.
Can it handle negative fractions?
Yes — use a minus sign, e.g. -1/2.
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