Subtract 21/24 from 28/4
1st number: 7 0/4, 2nd number: 21/24
28/4 - 21/24 is 49/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 4 × 6 = 24,
28/4 = 28 × 6/4 × 6 = 168/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Subtract the two like fractions:
168/24 - 21/24 = 168 - 21/24 = 147/24 - After reducing the fraction, the answer is 49/8
- In mixed form: 61/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4-21/24 28/4-42/24 28/8-21/24 28/4-21/48 84/4-21/24 28/4-63/24 28/12-21/24 28/4-21/72 28/20-21/24