Subtract 1/20 from 10/32
10/32 - 1/20 is 21/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 20 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
10/32 = 10 × 5/32 × 5 = 50/160 - Likewise, for the 2nd fraction, since 20 × 8 = 160,
1/20 = 1 × 8/20 × 8 = 8/160 - Subtract the two like fractions:
50/160 - 8/160 = 50 - 8/160 = 42/160 - After reducing the fraction, the answer is 21/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/32-1/20 10/32-2/20 10/64-1/20 10/32-1/40 30/32-1/20 10/32-3/20 10/96-1/20 10/32-1/60 50/32-1/20 10/32-5/20 70/32-1/20 10/32-7/20