Answers

Subtract 70/81 from 28/98

28/98 - 70/81 is -328/567.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 81 is 7938
   
   Next, find the equivalent fraction of both fractional numbers with denominator 7938
2. For the 1st fraction, since 98 × 81 = 7938,
   28/98 = 28 × 81/98 × 81 = 2268/7938
3. Likewise, for the 2nd fraction, since 81 × 98 = 7938,
   70/81 = 70 × 98/81 × 98 = 6860/7938
4. Subtract the two like fractions:
   2268/7938 - 6860/7938 = 2268 - 6860/7938 = -4592/7938
5. After reducing the fraction, the answer is -328/567

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