Answers

Subtract 49/20 from 8/9

1^st number: 8/9, 2^nd number: 2 9/20

8/9 - 49/20 is -281/180.

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,
   49/20 = 49 × 9/20 × 9 = 441/180
4. Subtract the two like fractions:
   160/180 - 441/180 = 160 - 441/180 = -281/180

MathStep (Works offline)

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

Related: ¹⁶/₉-⁴⁹/₂₀ ⁸/₉-⁹⁸/₂₀ ⁸/₁₈-⁴⁹/₂₀ ⁸/₉-⁴⁹/₄₀ ²⁴/₉-⁴⁹/₂₀ ⁸/₂₇-⁴⁹/₂₀ ⁸/₉-⁴⁹/₆₀ ⁴⁰/₉-⁴⁹/₂₀ ⁸/₄₅-⁴⁹/₂₀ ⁵⁶/₉-⁴⁹/₂₀ ⁸/₆₃-⁴⁹/₂₀

Subtract Fractions Calculator