Subtract 20/18 from 16/98, Solve 16/98

Subtract 20/18 from 16/98

1^st number: 16/98, 2^nd number: 1 2/18

16/98 - 20/18 is -418/441.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 18 is 882

Next, find the equivalent fraction of both fractional numbers with denominator 882
For the 1st fraction, since 98 × 9 = 882,
16/98 = 16 × 9/98 × 9 = 144/882
Likewise, for the 2nd fraction, since 18 × 49 = 882,
20/18 = 20 × 49/18 × 49 = 980/882
Subtract the two like fractions:
144/882 - 980/882 = 144 - 980/882 = -836/882
After reducing the fraction, the answer is -418/441

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