Subtract 3/48 from 21/49
21/49 - 3/48 is 41/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 48 is 2352
Next, find the equivalent fraction of both fractional numbers with denominator 2352 - For the 1st fraction, since 49 × 48 = 2352,
21/49 = 21 × 48/49 × 48 = 1008/2352 - Likewise, for the 2nd fraction, since 48 × 49 = 2352,
3/48 = 3 × 49/48 × 49 = 147/2352 - Subtract the two like fractions:
1008/2352 - 147/2352 = 1008 - 147/2352 = 861/2352 - After reducing the fraction, the answer is 41/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49-3/48 21/49-6/48 21/98-3/48 21/49-3/96 63/49-3/48 21/49-9/48 21/49-15/48 21/49-21/48