Answers

Subtract 24/15 from 50/21

1^st number: 2 8/21, 2^nd number: 1 9/15

50/21 - 24/15 is 82/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 15 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   50/21 = 50 × 5/21 × 5 = 250/105
3. Likewise, for the 2nd fraction, since 15 × 7 = 105,
   24/15 = 24 × 7/15 × 7 = 168/105
4. Subtract the two like fractions:
   250/105 - 168/105 = 250 - 168/105 = 82/105

MathStep (Works offline)

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

Related: ⁵⁰/₂₁-⁴⁸/₁₅ ⁵⁰/₄₂-²⁴/₁₅ ⁵⁰/₂₁-²⁴/₃₀ ⁵⁰/₂₁-⁷²/₁₅ ⁵⁰/₆₃-²⁴/₁₅ ⁵⁰/₂₁-²⁴/₄₅ ⁵⁰/₂₁-²⁴/₇₅

Subtract Fractions Calculator