Answers

Subtract 80/81 from 28/81

28/81 - 80/81 is -52/81.

Steps for subtracting fractions

1. Subtract the two fractions:
   28/81 - 80/81 = 28 - 80/81 = -52/81

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁵⁶/₈₁-⁸⁰/₈₁ ⁸⁴/₈₁-⁸⁰/₈₁

Subtract Fractions Calculator