Fraction Calculator

Add, subtract, multiply, divide, and simplify fractions with an easy-to-use calculator.

Calculate with fractions

Enter two fractions, choose an operation, and calculate the result. Whole numbers and decimal values are supported.

First fraction
Second fraction
Result
—
Exact fraction
—
Step-by-step

How to calculate fractions

Fraction calculations depend on the operation you choose. Addition and subtraction require a common denominator, while multiplication and division use different rules.

Addition: a/b + c/d = (ad + bc) / bd
Subtraction: a/b − c/d = (ad − bc) / bd
Multiplication: a/b × c/d = ac / bd
Division: a/b ÷ c/d = ad / bc

Step-by-step calculation

1
Enter both fractions Enter the numerator and denominator for each fraction. Decimal values are also supported.
2
Choose an operation Select addition, subtraction, multiplication, or division.
3
View the result The calculator displays a rounded decimal result and the exact fraction.

Example

Suppose you want to add 1/2 and 1/4.

First fraction 1 / 2
Second fraction 1 / 4
Operation Addition
Result 0.75
Exact fraction 3 / 4

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Note: This calculator is intended for general mathematical calculations. Check that the values you enter are appropriate for the calculation you are performing.