Fraction Calculator

Calculate the sum, difference, product, and quotient of two fractions and show the reduced fraction and decimal value. Handy for solving math problems — all calculations happen inside your browser.

+ Add − Subtract × Multiply ÷ Divide

First numerator

First denominator

Second numerator

Second denominator

Enter numerators and denominators to see the result.

How to use

Choose the operation (add, subtract, multiply, or divide).
Enter the numerators and denominators of the two fractions.
The reduced fraction and decimal value are shown in real time.

Frequently asked questions

Is the result shown as a reduced fraction?

Yes. The result is reduced by the greatest common divisor to a fraction in lowest terms, and the decimal value is shown too.

Which operations can I do?

You can add, subtract, multiply, and divide two fractions. A denominator cannot be zero.

Are the values I enter sent to a server?

No. All calculations happen only inside your browser, and the values you enter are never sent to or stored on any server.