Subtract 56/9 from 3/42
1st number: 3/42, 2nd number: 6 2/9
3/42 - 56/9 is -775/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
3/42 = 3 × 3/42 × 3 = 9/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
56/9 = 56 × 14/9 × 14 = 784/126 - Subtract the two like fractions:
9/126 - 784/126 = 9 - 784/126 = -775/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42-56/9 3/84-56/9 3/42-56/18 9/42-56/9 3/42-56/27 15/42-56/9 3/42-56/45 21/42-56/9 3/42-56/63