Subtract 21/32 from 15/12
1st number: 1 3/12, 2nd number: 21/32
15/12 - 21/32 is 19/32.
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,
15/12 = 15 × 8/12 × 8 = 120/96 - Likewise, for the 2nd fraction, since 32 × 3 = 96,
21/32 = 21 × 3/32 × 3 = 63/96 - Subtract the two like fractions:
120/96 - 63/96 = 120 - 63/96 = 57/96 - After reducing the fraction, the answer is 19/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12-21/32 15/12-42/32 15/24-21/32 15/12-21/64 45/12-21/32 15/12-63/32 15/36-21/32 15/12-21/96 75/12-21/32 15/60-21/32 15/84-21/32