Subtract 42/15 from 36/4
1st number: 9 0/4, 2nd number: 2 12/15
36/4 - 42/15 is 31/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
36/4 = 36 × 15/4 × 15 = 540/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
42/15 = 42 × 4/15 × 4 = 168/60 - Subtract the two like fractions:
540/60 - 168/60 = 540 - 168/60 = 372/60 - After reducing the fraction, the answer is 31/5
- In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-42/15 36/4-84/15 36/8-42/15 36/4-42/30 36/12-42/15 36/4-42/45 36/20-42/15 36/4-42/75 36/28-42/15