Subtract 6/7 from 6/42
6/42 - 6/7 is -5/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
6/42 = 6 × 1/42 × 1 = 6/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
6/7 = 6 × 6/7 × 6 = 36/42 - Subtract the two like fractions:
6/42 - 36/42 = 6 - 36/42 = -30/42 - After reducing the fraction, the answer is -5/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42-6/7 6/42-12/7 6/84-6/7 6/42-6/14 18/42-6/7 6/42-18/7 6/42-6/21 30/42-6/7 6/42-30/7 6/42-6/35 6/42-42/7 6/42-6/49