Answers

Subtract 20/21 from 9/21

9/21 - 20/21 is -11/21.

Steps for subtracting fractions

1. Subtract the two fractions:
   9/21 - 20/21 = 9 - 20/21 = -11/21

MathStep (Works offline)

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

Related: ¹⁸/₂₁-²⁰/₂₁ ⁹/₂₁-⁴⁰/₂₁ ⁹/₄₂-²⁰/₂₁ ⁹/₂₁-²⁰/₄₂ ²⁷/₂₁-²⁰/₂₁ ⁹/₂₁-⁶⁰/₂₁ ⁹/₆₃-²⁰/₂₁ ⁹/₂₁-²⁰/₆₃ ⁴⁵/₂₁-²⁰/₂₁ ⁶³/₂₁-²⁰/₂₁

Subtract Fractions Calculator