Answers

Subtract 81/40 from 10/24

1^st number: 10/24, 2^nd number: 2 1/40

10/24 - 81/40 is -193/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 24 × 5 = 120,
   10/24 = 10 × 5/24 × 5 = 50/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   81/40 = 81 × 3/40 × 3 = 243/120
4. Subtract the two like fractions:
   50/120 - 243/120 = 50 - 243/120 = -193/120

MathStep (Works offline)

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

Related: ²⁰/₂₄-⁸¹/₄₀ ¹⁰/₄₈-⁸¹/₄₀ ¹⁰/₂₄-⁸¹/₈₀ ³⁰/₂₄-⁸¹/₄₀ ¹⁰/₇₂-⁸¹/₄₀ ⁵⁰/₂₄-⁸¹/₄₀ ⁷⁰/₂₄-⁸¹/₄₀

Subtract Fractions Calculator