Subtract 42/6 from 15/42
1st number: 15/42, 2nd number: 7 0/6
15/42 - 42/6 is -93/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
42/6 = 42 × 7/6 × 7 = 294/42 - Subtract the two like fractions:
15/42 - 294/42 = 15 - 294/42 = -279/42 - After reducing the fraction, the answer is -93/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42-42/6 15/42-84/6 15/84-42/6 15/42-42/12 45/42-42/6 15/42-42/18 75/42-42/6 15/42-42/30