Answers

Subtract 5/81 from 2/12

2/12 - 5/81 is 17/162.

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,
   2/12 = 2 × 27/12 × 27 = 54/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   5/81 = 5 × 4/81 × 4 = 20/324
4. Subtract the two like fractions:
   54/324 - 20/324 = 54 - 20/324 = 34/324
5. After reducing the fraction, the answer is 17/162

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