Subtract 40/7 from 6/42
1st number: 6/42, 2nd number: 5 5/7
6/42 - 40/7 is -39/7.
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,
40/7 = 40 × 6/7 × 6 = 240/42 - Subtract the two like fractions:
6/42 - 240/42 = 6 - 240/42 = -234/42 - After reducing the fraction, the answer is -39/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42-40/7 6/42-80/7 6/84-40/7 6/42-40/14 18/42-40/7 6/42-40/21 30/42-40/7 6/42-40/35 6/42-40/49