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