Subtract 70/9 from 10/98, Solve 10/98

Subtract 70/9 from 10/98

1^st number: 10/98, 2^nd number: 7 7/9

10/98 - 70/9 is -3385/441.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 9 is 882

Next, find the equivalent fraction of both fractional numbers with denominator 882
For the 1st fraction, since 98 × 9 = 882,
10/98 = 10 × 9/98 × 9 = 90/882
Likewise, for the 2nd fraction, since 9 × 98 = 882,
70/9 = 70 × 98/9 × 98 = 6860/882
Subtract the two like fractions:
90/882 - 6860/882 = 90 - 6860/882 = -6770/882
After reducing the fraction, the answer is -3385/441

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