Subtract 21/8 from 63/32
1st number: 1 31/32, 2nd number: 2 5/8
63/32 - 21/8 is -21/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 8 is 32
Next, find the equivalent fraction of both fractional numbers with denominator 32 - For the 1st fraction, since 32 × 1 = 32,
63/32 = 63 × 1/32 × 1 = 63/32 - Likewise, for the 2nd fraction, since 8 × 4 = 32,
21/8 = 21 × 4/8 × 4 = 84/32 - Subtract the two like fractions:
63/32 - 84/32 = 63 - 84/32 = -21/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/32-42/8 63/64-21/8 63/32-21/16 63/32-63/8 63/96-21/8 63/32-21/24 63/32-21/40 63/32-21/56