Subtract 30/27 from 7/98, Solve 7/98

Subtract 30/27 from 7/98

1^st number: 7/98, 2^nd number: 1 3/27

7/98 - 30/27 is -131/126.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 27 is 2646

Next, find the equivalent fraction of both fractional numbers with denominator 2646
For the 1st fraction, since 98 × 27 = 2646,
7/98 = 7 × 27/98 × 27 = 189/2646
Likewise, for the 2nd fraction, since 27 × 98 = 2646,
30/27 = 30 × 98/27 × 98 = 2940/2646
Subtract the two like fractions:
189/2646 - 2940/2646 = 189 - 2940/2646 = -2751/2646
After reducing the fraction, the answer is -131/126

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