Subtract 21/96 from 42/12
1st number: 3 6/12, 2nd number: 21/96
42/12 - 21/96 is 105/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 96 is 96
Next, find the equivalent fraction of both fractional numbers with denominator 96 - For the 1st fraction, since 12 × 8 = 96,
42/12 = 42 × 8/12 × 8 = 336/96 - Likewise, for the 2nd fraction, since 96 × 1 = 96,
21/96 = 21 × 1/96 × 1 = 21/96 - Subtract the two like fractions:
336/96 - 21/96 = 336 - 21/96 = 315/96 - After reducing the fraction, the answer is 105/32
- In mixed form: 39/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-21/96 42/12-42/96 42/24-21/96 42/12-63/96 42/36-21/96 42/60-21/96 42/84-21/96