Answers

Subtract 15/81 from 7/12

7/12 - 15/81 is 43/108.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 12 × 27 = 324,
   7/12 = 7 × 27/12 × 27 = 189/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   15/81 = 15 × 4/81 × 4 = 60/324
4. Subtract the two like fractions:
   189/324 - 60/324 = 189 - 60/324 = 129/324
5. After reducing the fraction, the answer is 43/108

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