Answers

Add 4/18 and 15/81

4/18 + 15/81 is 11/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 18 × 9 = 162,
   4/18 = 4 × 9/18 × 9 = 36/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   15/81 = 15 × 2/81 × 2 = 30/162
4. Add the two like fractions:
   36/162 + 30/162 = 36 + 30/162 = 66/162
5. 66/162 simplified gives 11/27
6. So, 4/18 + 15/81 = 11/27

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