Answers

Subtract 27/98 from 4/81

4/81 - 27/98 is -1795/7938.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 98 is 7938
   
   Next, find the equivalent fraction of both fractional numbers with denominator 7938
2. For the 1st fraction, since 81 × 98 = 7938,
   4/81 = 4 × 98/81 × 98 = 392/7938
3. Likewise, for the 2nd fraction, since 98 × 81 = 7938,
   27/98 = 27 × 81/98 × 81 = 2187/7938
4. Subtract the two like fractions:
   392/7938 - 2187/7938 = 392 - 2187/7938 = -1795/7938

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