Subtract 9/8 from 10/15
1st number: 10/15, 2nd number: 1 1/8
10/15 - 9/8 is -11/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
10/15 = 10 × 8/15 × 8 = 80/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
9/8 = 9 × 15/8 × 15 = 135/120 - Subtract the two like fractions:
80/120 - 135/120 = 80 - 135/120 = -55/120 - After reducing the fraction, the answer is -11/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15-9/8 10/15-18/8 10/30-9/8 10/15-9/16 30/15-9/8 10/15-27/8 10/45-9/8 10/15-9/24 50/15-9/8 10/15-45/8 10/75-9/8 10/15-9/40 70/15-9/8 10/15-63/8 10/15-9/56