Subtract 27/24 from 9/15
1st number: 9/15, 2nd number: 1 3/24
9/15 - 27/24 is -21/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
9/15 = 9 × 8/15 × 8 = 72/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
27/24 = 27 × 5/24 × 5 = 135/120 - Subtract the two like fractions:
72/120 - 135/120 = 72 - 135/120 = -63/120 - After reducing the fraction, the answer is -21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-27/24 9/15-54/24 9/30-27/24 9/15-27/48 27/15-27/24 9/15-81/24 9/45-27/24 9/15-27/72 45/15-27/24 9/75-27/24 63/15-27/24