Subtract 64/7 from 2/42
1st number: 2/42, 2nd number: 9 1/7
2/42 - 64/7 is -191/21.
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,
2/42 = 2 × 1/42 × 1 = 2/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
64/7 = 64 × 6/7 × 6 = 384/42 - Subtract the two like fractions:
2/42 - 384/42 = 2 - 384/42 = -382/42 - After reducing the fraction, the answer is -191/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/42-64/7 2/84-64/7 2/42-64/14 6/42-64/7 2/42-64/21 10/42-64/7 2/42-64/35 14/42-64/7 2/42-64/49