Fraction Calculator
Add, subtract, multiply and divide fractions and mixed numbers — with steps and the simplest form.
Type fractions like 3/4, mixed numbers like 1 1/2, whole numbers or decimals like 0.75.
Runs in your browser — your data never leaves your device.
About the Fraction Calculator
Work out fraction sums for homework or recipes and see how the answer is found. Enter fractions like 3/4, mixed numbers like 1 1/2, whole numbers or decimals — decimals are turned into fractions automatically.
How to use the Fraction Calculator
- Type the first fraction, choose +, −, × or ÷, and type the second.
- Read the answer, the steps, and the mixed-number, decimal and percent forms.
Formula
Add/subtract: use the least common denominator. Multiply: multiply tops and bottoms. Divide: flip the second fraction and multiply. Results are simplified by dividing by the greatest common divisor.
Examples
1 1/2 + 2/3= 9/6 + 4/6 = 13/6 = 2 1/6 ≈ 2.16673/4 ÷ 1/8= 6
Frequently asked questions
How do I simplify a single fraction?
Enter it with “× 1” — for example 12/18 × 1 — and read the simplest form (2/3).