Subtract 21/32 from 1/15
1/15 - 21/32 is -283/480.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 15 × 32 = 480,
1/15 = 1 × 32/15 × 32 = 32/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
21/32 = 21 × 15/32 × 15 = 315/480 - Subtract the two like fractions:
32/480 - 315/480 = 32 - 315/480 = -283/480
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15-21/32 1/15-42/32 1/30-21/32 1/15-21/64 3/15-21/32 1/15-63/32 1/45-21/32 1/15-21/96 5/15-21/32 1/75-21/32 7/15-21/32