Answers

Subtract 42/36 from 90/98

1^st number: 90/98, 2^nd number: 1 6/36

90/98 - 42/36 is -73/294.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 36 is 1764
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1764
2. For the 1st fraction, since 98 × 18 = 1764,
   90/98 = 90 × 18/98 × 18 = 1620/1764
3. Likewise, for the 2nd fraction, since 36 × 49 = 1764,
   42/36 = 42 × 49/36 × 49 = 2058/1764
4. Subtract the two like fractions:
   1620/1764 - 2058/1764 = 1620 - 2058/1764 = -438/1764
5. After reducing the fraction, the answer is -73/294

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