Subtract 20/32 from 21/10
1st number: 2 1/10, 2nd number: 20/32
21/10 - 20/32 is 59/40.
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,
21/10 = 21 × 16/10 × 16 = 336/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
20/32 = 20 × 5/32 × 5 = 100/160 - Subtract the two like fractions:
336/160 - 100/160 = 336 - 100/160 = 236/160 - After reducing the fraction, the answer is 59/40
- In mixed form: 119/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-20/32 21/10-40/32 21/20-20/32 21/10-20/64 63/10-20/32 21/10-60/32 21/30-20/32 21/10-20/96 21/50-20/32 21/70-20/32