Answers

Add 4/81 and 5/12

4/81 + 5/12 is 151/324.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 12 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   4/81 = 4 × 4/81 × 4 = 16/324
3. Likewise, for the 2nd fraction, since 12 × 27 = 324,
   5/12 = 5 × 27/12 × 27 = 135/324
4. Add the two like fractions:
   16/324 + 135/324 = 16 + 135/324 = 151/324
5. So, 4/81 + 5/12 = 151/324

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