Subtract 10/98 from 6/21, Solve 6/21

Subtract 10/98 from 6/21

6/21 - 10/98 is 9/49.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 98 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 21 × 14 = 294,
6/21 = 6 × 14/21 × 14 = 84/294
Likewise, for the 2nd fraction, since 98 × 3 = 294,
10/98 = 10 × 3/98 × 3 = 30/294
Subtract the two like fractions:
84/294 - 30/294 = 84 - 30/294 = 54/294
After reducing the fraction, the answer is 9/49

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad