Answers

Subtract 27/4 from 8/81

1^st number: 8/81, 2^nd number: 6 3/4

8/81 - 27/4 is -2155/324.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 4 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   8/81 = 8 × 4/81 × 4 = 32/324
3. Likewise, for the 2nd fraction, since 4 × 81 = 324,
   27/4 = 27 × 81/4 × 81 = 2187/324
4. Subtract the two like fractions:
   32/324 - 2187/324 = 32 - 2187/324 = -2155/324

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