Subtract 40/36 from 18/15
1st number: 1 3/15, 2nd number: 1 4/36
18/15 - 40/36 is 4/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 15 × 12 = 180,
18/15 = 18 × 12/15 × 12 = 216/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
40/36 = 40 × 5/36 × 5 = 200/180 - Subtract the two like fractions:
216/180 - 200/180 = 216 - 200/180 = 16/180 - After reducing the fraction, the answer is 4/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15-40/36 18/15-80/36 18/30-40/36 18/15-40/72 54/15-40/36 18/45-40/36 90/15-40/36 18/75-40/36