Subtract 15/12 from 42/6
1st number: 7 0/6, 2nd number: 1 3/12
42/6 - 15/12 is 23/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
42/6 = 42 × 2/6 × 2 = 84/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
15/12 = 15 × 1/12 × 1 = 15/12 - Subtract the two like fractions:
84/12 - 15/12 = 84 - 15/12 = 69/12 - After reducing the fraction, the answer is 23/4
- In mixed form: 53/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6-15/12 42/6-30/12 42/12-15/12 42/6-15/24 42/6-45/12 42/18-15/12 42/6-15/36 42/6-75/12 42/30-15/12 42/6-15/60 42/6-15/84