Subtract 25/36 from 18/54
18/54 - 25/36 is -13/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 36 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
18/54 = 18 × 2/54 × 2 = 36/108 - Likewise, for the 2nd fraction, since 36 × 3 = 108,
25/36 = 25 × 3/36 × 3 = 75/108 - Subtract the two like fractions:
36/108 - 75/108 = 36 - 75/108 = -39/108 - After reducing the fraction, the answer is -13/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/54-25/36 18/54-50/36 18/54-25/72 18/54-75/36 90/54-25/36