Subtract 21/48 from 7/12
7/12 - 21/48 is 7/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
7/12 = 7 × 4/12 × 4 = 28/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
21/48 = 21 × 1/48 × 1 = 21/48 - Subtract the two like fractions:
28/48 - 21/48 = 28 - 21/48 = 7/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-21/48 7/12-42/48 7/24-21/48 7/12-21/96 21/12-21/48 7/12-63/48 7/36-21/48 35/12-21/48 7/60-21/48 49/12-21/48 7/84-21/48