Subtract 21/24 from 15/2
1st number: 7 1/2, 2nd number: 21/24
15/2 - 21/24 is 53/8.
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,
15/2 = 15 × 12/2 × 12 = 180/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Subtract the two like fractions:
180/24 - 21/24 = 180 - 21/24 = 159/24 - After reducing the fraction, the answer is 53/8
- In mixed form: 65/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2-21/24 15/2-42/24 15/4-21/24 15/2-21/48 45/2-21/24 15/2-63/24 15/6-21/24 15/2-21/72 75/2-21/24 15/10-21/24 15/14-21/24