Subtract 15/36 from 42/15
1st number: 2 12/15, 2nd number: 15/36
42/15 - 15/36 is 143/60.
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,
42/15 = 42 × 12/15 × 12 = 504/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
15/36 = 15 × 5/36 × 5 = 75/180 - Subtract the two like fractions:
504/180 - 75/180 = 504 - 75/180 = 429/180 - After reducing the fraction, the answer is 143/60
- In mixed form: 223/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15-15/36 42/15-30/36 42/30-15/36 42/15-15/72 42/15-45/36 42/45-15/36 42/15-75/36 42/75-15/36