Subtract 9/12 from 6/20
6/20 - 9/12 is -9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 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 12 × 5 = 60,
9/12 = 9 × 5/12 × 5 = 45/60 - Subtract the two like fractions:
18/60 - 45/60 = 18 - 45/60 = -27/60 - After reducing the fraction, the answer is -9/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-9/12 6/20-18/12 6/40-9/12 6/20-9/24 18/20-9/12 6/20-27/12 6/60-9/12 6/20-9/36 30/20-9/12 6/20-45/12 6/20-9/60 42/20-9/12 6/20-63/12 6/20-9/84