Answers

Subtract 48/24 from 21/54

1^st number: 21/54, 2^nd number: 2 0/24

21/54 - 48/24 is -29/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 24 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 54 × 4 = 216,
   21/54 = 21 × 4/54 × 4 = 84/216
3. Likewise, for the 2nd fraction, since 24 × 9 = 216,
   48/24 = 48 × 9/24 × 9 = 432/216
4. Subtract the two like fractions:
   84/216 - 432/216 = 84 - 432/216 = -348/216
5. After reducing the fraction, the answer is -29/18

MathStep (Works offline)

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

Related: ⁴²/₅₄-⁴⁸/₂₄ ²¹/₅₄-⁹⁶/₂₄ ⁶³/₅₄-⁴⁸/₂₄ ²¹/₅₄-⁴⁸/₇₂

Subtract Fractions Calculator