Subtract 12/15 from 15/24
15/24 - 12/15 is -7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
15/24 = 15 × 5/24 × 5 = 75/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
12/15 = 12 × 8/15 × 8 = 96/120 - Subtract the two like fractions:
75/120 - 96/120 = 75 - 96/120 = -21/120 - After reducing the fraction, the answer is -7/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/24-12/15 15/24-24/15 15/48-12/15 15/24-12/30 45/24-12/15 15/24-36/15 15/72-12/15 15/24-12/45 75/24-12/15 15/24-60/15 15/24-12/75 15/24-84/15