Fraction Calculator (with steps)

Fraction arithmetic with the working shown, plus simplification and mixed-number / decimal conversion.

✨ Features

Add, subtract, multiply and divide fractions with common denominators, reciprocals and simplification shown step by step
Enter mixed numbers (1 1/2), decimals (0.75), whole numbers and negatives directly
Answers as simplified fraction, mixed number and decimal; simplification shows the divisor used
Calculates as you type; copy results or share a URL

🪄 Use cases

Checking homework

The steps show where a mistake happened.

Cooking

3/4 cup times 1.5.

Woodwork and sewing in inches

5/8 in plus 3/16 in.

Decimal to fraction

0.375 is 3/8.

🔒 Privacy

Input is processed in your browser and never sent to a server. Only when you shorten a share URL is that URL (including the input) sent to the shortening service.

❓ FAQ

What is a common denominator?

To add or subtract fractions with different denominators, both are rewritten over the least common multiple: 3/4 + 1/6 becomes 9/12 + 2/12 = 11/12.

Why multiply by the reciprocal when dividing?

a/b ÷ c/d equals a/b × d/c, because multiplying both sides by d/c turns the divisor into 1.

How do I enter a mixed number?

Put a space between the whole number and the fraction: 1 1/2. Negative: -1 1/2.

Can repeating decimals be converted?

Decimals are converted using the digits you type (0.333 → 333/1000). For exact thirds, enter 1/3 as a fraction.

Calculate

Fraction A

Operation

Fraction B

Fractions as 3/4, mixed numbers as 1 1/2 (space between), decimals as 0.75, whole numbers as 2

Steps

Simplify & convert

Fraction or decimal