Subtract 3/5 from 3/20
3/20 - 3/5 is -9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
3/20 = 3 × 1/20 × 1 = 3/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
3/5 = 3 × 4/5 × 4 = 12/20 - Subtract the two like fractions:
3/20 - 12/20 = 3 - 12/20 = -9/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20-3/5 3/20-6/5 3/40-3/5 3/20-3/10 9/20-3/5 3/20-9/5 3/60-3/5 3/20-3/15 15/20-3/5 3/20-15/5 3/20-3/25 21/20-3/5 3/20-21/5 3/20-3/35