Subtract 6/18 from 18/15
1st number: 1 3/15, 2nd number: 6/18
18/15 - 6/18 is 13/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
18/15 = 18 × 6/15 × 6 = 108/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
6/18 = 6 × 5/18 × 5 = 30/90 - Subtract the two like fractions:
108/90 - 30/90 = 108 - 30/90 = 78/90 - After reducing the fraction, the answer is 13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15-6/18 18/15-12/18 18/30-6/18 18/15-6/36 54/15-6/18 18/45-6/18 18/15-6/54 90/15-6/18 18/15-30/18 18/75-6/18 18/15-6/90 18/15-42/18