Subtract 9/48 from 12/21
12/21 - 9/48 is 43/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
12/21 = 12 × 16/21 × 16 = 192/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
9/48 = 9 × 7/48 × 7 = 63/336 - Subtract the two like fractions:
192/336 - 63/336 = 192 - 63/336 = 129/336 - After reducing the fraction, the answer is 43/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21-9/48 12/21-18/48 12/42-9/48 12/21-9/96 36/21-9/48 12/21-27/48 12/63-9/48 60/21-9/48 12/21-45/48 84/21-9/48 12/21-63/48