Subtract 18/16 from 15/36
1st number: 15/36, 2nd number: 1 2/16
15/36 - 18/16 is -17/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
15/36 = 15 × 4/36 × 4 = 60/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
18/16 = 18 × 9/16 × 9 = 162/144 - Subtract the two like fractions:
60/144 - 162/144 = 60 - 162/144 = -102/144 - After reducing the fraction, the answer is -17/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/36-18/16 15/36-36/16 15/72-18/16 15/36-18/32 45/36-18/16 15/36-54/16 15/36-18/48 75/36-18/16 15/36-90/16 15/36-18/80