Subtract 27/36 from 18/25
18/25 - 27/36 is -3/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 25 × 36 = 900,
18/25 = 18 × 36/25 × 36 = 648/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
27/36 = 27 × 25/36 × 25 = 675/900 - Subtract the two like fractions:
648/900 - 675/900 = 648 - 675/900 = -27/900 - After reducing the fraction, the answer is -3/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/25-27/36 18/25-54/36 18/50-27/36 18/25-27/72 54/25-27/36 18/25-81/36 18/75-27/36 90/25-27/36