Answers

Subtract 5/20 from 8/9

8/9 - 5/20 is 23/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 20 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 9 × 20 = 180,
   8/9 = 8 × 20/9 × 20 = 160/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   5/20 = 5 × 9/20 × 9 = 45/180
4. Subtract the two like fractions:
   160/180 - 45/180 = 160 - 45/180 = 115/180
5. After reducing the fraction, the answer is 23/36

MathStep (Works offline)

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

Related: ¹⁶/₉-⁵/₂₀ ⁸/₉-¹⁰/₂₀ ⁸/₁₈-⁵/₂₀ ⁸/₉-⁵/₄₀ ²⁴/₉-⁵/₂₀ ⁸/₉-¹⁵/₂₀ ⁸/₂₇-⁵/₂₀ ⁸/₉-⁵/₆₀ ⁴⁰/₉-⁵/₂₀ ⁸/₉-²⁵/₂₀ ⁸/₄₅-⁵/₂₀ ⁵⁶/₉-⁵/₂₀ ⁸/₉-³⁵/₂₀ ⁸/₆₃-⁵/₂₀

Subtract Fractions Calculator