Subtract 63/28 from 21/32
1st number: 21/32, 2nd number: 2 7/28
21/32 - 63/28 is -51/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 28 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 32 × 7 = 224,
21/32 = 21 × 7/32 × 7 = 147/224 - Likewise, for the 2nd fraction, since 28 × 8 = 224,
63/28 = 63 × 8/28 × 8 = 504/224 - Subtract the two like fractions:
147/224 - 504/224 = 147 - 504/224 = -357/224 - After reducing the fraction, the answer is -51/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/32-63/28 21/64-63/28 21/32-63/56 63/32-63/28 21/96-63/28 21/32-63/84