Subtract 21/32 from 20/12
1st number: 1 8/12, 2nd number: 21/32
20/12 - 21/32 is 97/96.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 32 is 96
Next, find the equivalent fraction of both fractional numbers with denominator 96 - For the 1st fraction, since 12 × 8 = 96,
20/12 = 20 × 8/12 × 8 = 160/96 - Likewise, for the 2nd fraction, since 32 × 3 = 96,
21/32 = 21 × 3/32 × 3 = 63/96 - Subtract the two like fractions:
160/96 - 63/96 = 160 - 63/96 = 97/96 - In mixed form: 11/96
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12-21/32 20/12-42/32 20/24-21/32 20/12-21/64 60/12-21/32 20/12-63/32 20/36-21/32 20/12-21/96 20/60-21/32 20/84-21/32