Subtract 9/15 from 6/20
6/20 - 9/15 is -3/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
6/20 = 6 × 3/20 × 3 = 18/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60 - Subtract the two like fractions:
18/60 - 36/60 = 18 - 36/60 = -18/60 - After reducing the fraction, the answer is -3/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-9/15 6/20-18/15 6/40-9/15 6/20-9/30 18/20-9/15 6/20-27/15 6/60-9/15 6/20-9/45 30/20-9/15 6/20-45/15 6/20-9/75 42/20-9/15 6/20-63/15