Subtract 21/32 from 35/40
35/40 - 21/32 is 7/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 40 × 4 = 160,
35/40 = 35 × 4/40 × 4 = 140/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
21/32 = 21 × 5/32 × 5 = 105/160 - Subtract the two like fractions:
140/160 - 105/160 = 140 - 105/160 = 35/160 - After reducing the fraction, the answer is 7/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40-21/32 35/40-42/32 35/80-21/32 35/40-21/64 35/40-63/32 35/40-21/96