Subtract 21/7 from 5/32
1st number: 5/32, 2nd number: 3 0/7
5/32 - 21/7 is -91/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 7 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 32 × 7 = 224,
5/32 = 5 × 7/32 × 7 = 35/224 - Likewise, for the 2nd fraction, since 7 × 32 = 224,
21/7 = 21 × 32/7 × 32 = 672/224 - Subtract the two like fractions:
35/224 - 672/224 = 35 - 672/224 = -637/224 - After reducing the fraction, the answer is -91/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/32-21/7 5/32-42/7 5/64-21/7 5/32-21/14 15/32-21/7 5/32-63/7 5/96-21/7 25/32-21/7 5/32-21/35 35/32-21/7 5/32-21/49