Subtract 21/24 from 21/2
1st number: 10 1/2, 2nd number: 21/24
21/2 - 21/24 is 77/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 2 × 12 = 24,
21/2 = 21 × 12/2 × 12 = 252/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Subtract the two like fractions:
252/24 - 21/24 = 252 - 21/24 = 231/24 - After reducing the fraction, the answer is 77/8
- In mixed form: 95/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2-21/24 21/2-42/24 21/4-21/24 21/2-21/48 63/2-21/24 21/2-63/24 21/6-21/24 21/2-21/72 21/10-21/24 21/14-21/24