Subtract 7/96 from 42/21
1st number: 2 0/21, 2nd number: 7/96
42/21 - 7/96 is 185/96.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 96 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
42/21 = 42 × 32/21 × 32 = 1344/672 - Likewise, for the 2nd fraction, since 96 × 7 = 672,
7/96 = 7 × 7/96 × 7 = 49/672 - Subtract the two like fractions:
1344/672 - 49/672 = 1344 - 49/672 = 1295/672 - After reducing the fraction, the answer is 185/96
- In mixed form: 189/96
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21-7/96 42/21-14/96 42/21-21/96 42/63-7/96 42/21-35/96 42/21-49/96