Subtract 4/32 from 3/20
3/20 - 4/32 is 1/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 20 × 8 = 160,
3/20 = 3 × 8/20 × 8 = 24/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
4/32 = 4 × 5/32 × 5 = 20/160 - Subtract the two like fractions:
24/160 - 20/160 = 24 - 20/160 = 4/160 - After reducing the fraction, the answer is 1/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20-4/32 3/20-8/32 3/40-4/32 3/20-4/64 9/20-4/32 3/20-12/32 3/60-4/32 3/20-4/96 15/20-4/32 3/20-20/32 21/20-4/32 3/20-28/32