Subtract 75/24 from 18/15
1st number: 1 3/15, 2nd number: 3 3/24
18/15 - 75/24 is -77/40.
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,
18/15 = 18 × 8/15 × 8 = 144/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
75/24 = 75 × 5/24 × 5 = 375/120 - Subtract the two like fractions:
144/120 - 375/120 = 144 - 375/120 = -231/120 - After reducing the fraction, the answer is -77/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15-75/24 18/30-75/24 18/15-75/48 54/15-75/24 18/45-75/24 18/15-75/72 90/15-75/24 18/75-75/24