Subtract 7/48 from 21/63
21/63 - 7/48 is 3/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 48 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
21/63 = 21 × 16/63 × 16 = 336/1008 - Likewise, for the 2nd fraction, since 48 × 21 = 1008,
7/48 = 7 × 21/48 × 21 = 147/1008 - Subtract the two like fractions:
336/1008 - 147/1008 = 336 - 147/1008 = 189/1008 - After reducing the fraction, the answer is 3/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/63-7/48 21/63-14/48 21/63-7/96 21/63-21/48 21/63-35/48 21/63-49/48