Subtract 9/10 from 6/20
6/20 - 9/10 is -3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
6/20 = 6 × 1/20 × 1 = 6/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
9/10 = 9 × 2/10 × 2 = 18/20 - Subtract the two like fractions:
6/20 - 18/20 = 6 - 18/20 = -12/20 - After reducing the fraction, the answer is -3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-9/10 6/20-18/10 6/40-9/10 6/20-9/20 18/20-9/10 6/20-27/10 6/60-9/10 6/20-9/30 30/20-9/10 6/20-45/10 6/20-9/50 42/20-9/10 6/20-63/10 6/20-9/70