Subtract 12/20 from 1/32
1/32 - 12/20 is -91/160.
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,
1/32 = 1 × 5/32 × 5 = 5/160 - Likewise, for the 2nd fraction, since 20 × 8 = 160,
12/20 = 12 × 8/20 × 8 = 96/160 - Subtract the two like fractions:
5/160 - 96/160 = 5 - 96/160 = -91/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/32-12/20 1/32-24/20 1/64-12/20 1/32-12/40 3/32-12/20 1/32-36/20 1/96-12/20 1/32-12/60 5/32-12/20 1/32-60/20 7/32-12/20 1/32-84/20