Subtract 21/96 from 6/7
6/7 - 21/96 is 143/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 96 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 7 × 96 = 672,
6/7 = 6 × 96/7 × 96 = 576/672 - Likewise, for the 2nd fraction, since 96 × 7 = 672,
21/96 = 21 × 7/96 × 7 = 147/672 - Subtract the two like fractions:
576/672 - 147/672 = 576 - 147/672 = 429/672 - After reducing the fraction, the answer is 143/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7-21/96 6/7-42/96 6/14-21/96 18/7-21/96 6/7-63/96 6/21-21/96 30/7-21/96 6/35-21/96 42/7-21/96 6/49-21/96