➗ Fraction Calculator — Add, Subtract, Multiply, Divide

Enter two fractions as whole numbers or mixed values such as 1 1/2. Pick an operation to see the simplified result and the decimal form.

Math Free · no sign-up Added 2026-10-09
Input
Result
Forms

Private by design. This tool runs entirely in your browser — nothing you enter or add is uploaded to any server.

How it works

  1. Enter each value as a proper fraction (3/4), a whole number (2) or a mixed number (1 1/2).
  2. Choose add, subtract, multiply or divide.
  3. Press Calculate to see the simplified fraction, a mixed number when it is greater than one, and the decimal.

Examples

  • 1 1/2 plus 3/4 equals 2 1/4.
  • 3/4 divided by 1/2 equals 1 1/2.
  • 2/4 simplifies to 1/2 before it is shown.

Frequently asked questions

How do I enter a mixed number?

Use a space between the whole part and the fraction, such as 1 1/2. A slash is required in the fractional part.

What happens on divide by zero?

A zero denominator or a zero divisor is rejected with an error. The page does not return infinity.

Are results exact?

Yes for rational inputs. The calculator uses integer arithmetic and reduces by the greatest common divisor.

More Math tools →