Subtract 27/4 from 7/98, Solve 7/98

Subtract 27/4 from 7/98

1^st number: 7/98, 2^nd number: 6 3/4

7/98 - 27/4 is -187/28.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 4 is 196

Next, find the equivalent fraction of both fractional numbers with denominator 196
For the 1st fraction, since 98 × 2 = 196,
7/98 = 7 × 2/98 × 2 = 14/196
Likewise, for the 2nd fraction, since 4 × 49 = 196,
27/4 = 27 × 49/4 × 49 = 1323/196
Subtract the two like fractions:
14/196 - 1323/196 = 14 - 1323/196 = -1309/196
After reducing the fraction, the answer is -187/28

MathStep (Works offline)

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