Subtract 21/48 from 16/28
16/28 - 21/48 is 15/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
16/28 = 16 × 12/28 × 12 = 192/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Subtract the two like fractions:
192/336 - 147/336 = 192 - 147/336 = 45/336 - After reducing the fraction, the answer is 15/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/28-21/48 16/28-42/48 16/56-21/48 16/28-21/96 48/28-21/48 16/28-63/48 16/84-21/48 80/28-21/48