Subtract 56/9 from 70/42
1st number: 1 28/42, 2nd number: 6 2/9
70/42 - 56/9 is -41/9.
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,
70/42 = 70 × 3/42 × 3 = 210/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
56/9 = 56 × 14/9 × 14 = 784/126 - Subtract the two like fractions:
210/126 - 784/126 = 210 - 784/126 = -574/126 - After reducing the fraction, the answer is -41/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84-56/9 70/42-56/18 70/42-56/27 70/42-56/45 70/42-56/63