Answers

Subtract 20/7 from 8/3

1^st number: 2 2/3, 2^nd number: 2 6/7

8/3 - 20/7 is -4/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 7 is 21
   
   Next, find the equivalent fraction of both fractional numbers with denominator 21
2. For the 1st fraction, since 3 × 7 = 21,
   8/3 = 8 × 7/3 × 7 = 56/21
3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
   20/7 = 20 × 3/7 × 3 = 60/21
4. Subtract the two like fractions:
   56/21 - 60/21 = 56 - 60/21 = -4/21

MathStep (Works offline)

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

Related: ¹⁶/₃-²⁰/₇ ⁸/₃-⁴⁰/₇ ⁸/₆-²⁰/₇ ⁸/₃-²⁰/₁₄ ²⁴/₃-²⁰/₇ ⁸/₃-⁶⁰/₇ ⁸/₉-²⁰/₇ ⁸/₃-²⁰/₂₁ ⁴⁰/₃-²⁰/₇ ⁸/₁₅-²⁰/₇ ⁸/₃-²⁰/₃₅ ⁵⁶/₃-²⁰/₇ ⁸/₂₁-²⁰/₇ ⁸/₃-²⁰/₄₉

Subtract Fractions Calculator