Fraction Calculator

Calculate fractions with ease — add, subtract, multiply, and divide. Get simplified results, mixed numbers, and decimal equivalents.

Add, subtract, multiply, or divide fractions. Enter numerators and denominators, choose an operation, and get simplified results instantly.

Result
Enter both fractions to calculate
Results are automatically simplified to lowest terms. Supports negative numbers and large integers up to 999,999,999.

How to Use This Tool

  1. 1

    Enter the first fraction

    Type the numerator (top) and denominator (bottom) for the first fraction.

  2. 2

    Choose an operation

    Select add (+), subtract (−), multiply (×), or divide (÷) using the operation buttons.

  3. 3

    Enter the second fraction

    Type the numerator and denominator for the second fraction.

  4. 4

    Get your result

    See the simplified fraction, decimal equivalent, and mixed number (if applicable) instantly.

Frequently Asked Questions

How are fractions simplified?
The calculator finds the Greatest Common Divisor (GCD) of the numerator and denominator, then divides both by it to get the simplest form.
Can I use negative numbers?
Yes. You can enter negative numbers for both numerators and denominators. The result will correctly handle the sign.
What is a mixed number?
A mixed number combines a whole number with a proper fraction. For example, 7/4 as a mixed number is 1 3/4.
Why can't the denominator be zero?
Division by zero is undefined in mathematics. A fraction with zero as the denominator has no valid value, so the calculator shows an error.