Answers

Subtract 5/4 from 12/81

1^st number: 12/81, 2^nd number: 1 1/4

12/81 - 5/4 is -119/108.

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,
   12/81 = 12 × 4/81 × 4 = 48/324
3. Likewise, for the 2nd fraction, since 4 × 81 = 324,
   5/4 = 5 × 81/4 × 81 = 405/324
4. Subtract the two like fractions:
   48/324 - 405/324 = 48 - 405/324 = -357/324
5. After reducing the fraction, the answer is -119/108

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