Subtract 18/7 from 70/98
1st number: 70/98, 2nd number: 2 4/7
70/98 - 18/7 is -13/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 7 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 98 × 1 = 98,
70/98 = 70 × 1/98 × 1 = 70/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
18/7 = 18 × 14/7 × 14 = 252/98 - Subtract the two like fractions:
70/98 - 252/98 = 70 - 252/98 = -182/98 - After reducing the fraction, the answer is -13/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/98-36/7 70/98-18/14 70/98-54/7 70/98-18/21 70/98-90/7 70/98-18/35 70/98-18/49