Subtract 72/60 from 9/30
1st number: 9/30, 2nd number: 1 12/60
9/30 - 72/60 is -9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
9/30 = 9 × 2/30 × 2 = 18/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
72/60 = 72 × 1/60 × 1 = 72/60 - Subtract the two like fractions:
18/60 - 72/60 = 18 - 72/60 = -54/60 - After reducing the fraction, the answer is -9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-72/60 9/60-72/60 27/30-72/60 9/90-72/60 45/30-72/60 63/30-72/60