Subtract 21/48 from 21/24
21/24 - 21/48 is 7/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 24 × 2 = 48,
21/24 = 21 × 2/24 × 2 = 42/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
21/48 = 21 × 1/48 × 1 = 21/48 - Subtract the two like fractions:
42/48 - 21/48 = 42 - 21/48 = 21/48 - After reducing the fraction, the answer is 7/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24-21/48 21/24-42/48 21/48-21/48 21/24-21/96 63/24-21/48 21/24-63/48 21/72-21/48