Subtract 15/24 from 18/36
18/36 - 15/24 is -1/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
18/36 = 18 × 2/36 × 2 = 36/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
15/24 = 15 × 3/24 × 3 = 45/72 - Subtract the two like fractions:
36/72 - 45/72 = 36 - 45/72 = -9/72 - After reducing the fraction, the answer is -1/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36-30/24 18/72-15/24 18/36-15/48 54/36-15/24 18/36-45/24 18/36-15/72 90/36-15/24 18/36-75/24