Answers

Subtract 70/9 from 21/98

1^st number: 21/98, 2^nd number: 7 7/9

21/98 - 70/9 is -953/126.

Steps for subtracting fractions

1. 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
2. For the 1st fraction, since 98 × 9 = 882,
   21/98 = 21 × 9/98 × 9 = 189/882
3. Likewise, for the 2nd fraction, since 9 × 98 = 882,
   70/9 = 70 × 98/9 × 98 = 6860/882
4. Subtract the two like fractions:
   189/882 - 6860/882 = 189 - 6860/882 = -6671/882
5. After reducing the fraction, the answer is -953/126

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