Answers

Subtract 35/54 from 24/21

1^st number: 1 3/21, 2^nd number: 35/54

24/21 - 35/54 is 187/378.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 21 × 18 = 378,
   24/21 = 24 × 18/21 × 18 = 432/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   35/54 = 35 × 7/54 × 7 = 245/378
4. Subtract the two like fractions:
   432/378 - 245/378 = 432 - 245/378 = 187/378

MathStep (Works offline)

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

Related: ⁴⁸/₂₁-³⁵/₅₄ ²⁴/₂₁-⁷⁰/₅₄ ²⁴/₄₂-³⁵/₅₄ ⁷²/₂₁-³⁵/₅₄ ²⁴/₆₃-³⁵/₅₄

Subtract Fractions Calculator