Subtract 9/15 from 12/24
12/24 - 9/15 is -1/10.
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,
12/24 = 12 × 5/24 × 5 = 60/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
9/15 = 9 × 8/15 × 8 = 72/120 - Subtract the two like fractions:
60/120 - 72/120 = 60 - 72/120 = -12/120 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/24-18/15 12/48-9/15 12/24-9/30 36/24-9/15 12/24-27/15 12/72-9/15 12/24-9/45 60/24-9/15 12/24-45/15 12/24-9/75 84/24-9/15 12/24-63/15