Subtract 20/60 from 9/10
9/10 - 20/60 is 17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
9/10 = 9 × 6/10 × 6 = 54/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
20/60 = 20 × 1/60 × 1 = 20/60 - Subtract the two like fractions:
54/60 - 20/60 = 54 - 20/60 = 34/60 - After reducing the fraction, the answer is 17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10-20/60 9/10-40/60 9/20-20/60 27/10-20/60 9/30-20/60 45/10-20/60 9/50-20/60 63/10-20/60 9/70-20/60