Subtract 3/20 from 3/32
3/32 - 3/20 is -9/160.
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,
3/32 = 3 × 5/32 × 5 = 15/160 - Likewise, for the 2nd fraction, since 20 × 8 = 160,
3/20 = 3 × 8/20 × 8 = 24/160 - Subtract the two like fractions:
15/160 - 24/160 = 15 - 24/160 = -9/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/32-3/20 3/32-6/20 3/64-3/20 3/32-3/40 9/32-3/20 3/32-9/20 3/96-3/20 3/32-3/60 15/32-3/20 3/32-15/20 21/32-3/20 3/32-21/20