Subtract 42/36 from 16/15
1st number: 1 1/15, 2nd number: 1 6/36
16/15 - 42/36 is -1/10.
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,
16/15 = 16 × 12/15 × 12 = 192/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
42/36 = 42 × 5/36 × 5 = 210/180 - Subtract the two like fractions:
192/180 - 210/180 = 192 - 210/180 = -18/180 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/15-42/36 16/15-84/36 16/30-42/36 16/15-42/72 48/15-42/36 16/45-42/36 80/15-42/36 16/75-42/36