Subtract 56/70 from 5/49
5/49 - 56/70 is -171/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
5/49 = 5 × 10/49 × 10 = 50/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
56/70 = 56 × 7/70 × 7 = 392/490 - Subtract the two like fractions:
50/490 - 392/490 = 50 - 392/490 = -342/490 - After reducing the fraction, the answer is -171/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/49-56/70 5/98-56/70 15/49-56/70 25/49-56/70 35/49-56/70