Subtract 5/7 from 20/98
20/98 - 5/7 is -25/49.
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,
20/98 = 20 × 1/98 × 1 = 20/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
5/7 = 5 × 14/7 × 14 = 70/98 - Subtract the two like fractions:
20/98 - 70/98 = 20 - 70/98 = -50/98 - After reducing the fraction, the answer is -25/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/98-5/7 20/98-10/7 20/98-5/14 60/98-5/7 20/98-15/7 20/98-5/21 20/98-25/7 20/98-5/35 20/98-35/7 20/98-5/49