Answers

Subtract 30/18 from 84/98

1^st number: 84/98, 2^nd number: 1 12/18

84/98 - 30/18 is -17/21.

Steps for subtracting fractions

1. 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
2. For the 1st fraction, since 98 × 9 = 882,
   84/98 = 84 × 9/98 × 9 = 756/882
3. Likewise, for the 2nd fraction, since 18 × 49 = 882,
   30/18 = 30 × 49/18 × 49 = 1470/882
4. Subtract the two like fractions:
   756/882 - 1470/882 = 756 - 1470/882 = -714/882
5. After reducing the fraction, the answer is -17/21

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