Answers

Subtract 80/7 from 90/98

1^st number: 90/98, 2^nd number: 11 3/7

90/98 - 80/7 is -515/49.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 7 is 98
   
   Next, find the equivalent fraction of both fractional numbers with denominator 98
2. For the 1st fraction, since 98 × 1 = 98,
   90/98 = 90 × 1/98 × 1 = 90/98
3. Likewise, for the 2nd fraction, since 7 × 14 = 98,
   80/7 = 80 × 14/7 × 14 = 1120/98
4. Subtract the two like fractions:
   90/98 - 1120/98 = 90 - 1120/98 = -1030/98
5. After reducing the fraction, the answer is -515/49

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