Subtract 21/32 from 40/10
1st number: 4 0/10, 2nd number: 21/32
40/10 - 21/32 is 107/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 10 × 16 = 160,
40/10 = 40 × 16/10 × 16 = 640/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
21/32 = 21 × 5/32 × 5 = 105/160 - Subtract the two like fractions:
640/160 - 105/160 = 640 - 105/160 = 535/160 - After reducing the fraction, the answer is 107/32
- In mixed form: 311/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10-21/32 40/10-42/32 40/20-21/32 40/10-21/64 40/10-63/32 40/30-21/32 40/10-21/96 40/50-21/32 40/70-21/32