Subtract 56/98 from 15/70
15/70 - 56/98 is -5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
15/70 = 15 × 7/70 × 7 = 105/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
56/98 = 56 × 5/98 × 5 = 280/490 - Subtract the two like fractions:
105/490 - 280/490 = 105 - 280/490 = -175/490 - After reducing the fraction, the answer is -5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70-56/98 45/70-56/98 75/70-56/98