Answers

Add 1/18 and 20/81

1/18 + 20/81 is 49/162.

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,
   1/18 = 1 × 9/18 × 9 = 9/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   20/81 = 20 × 2/81 × 2 = 40/162
4. Add the two like fractions:
   9/162 + 40/162 = 9 + 40/162 = 49/162
5. So, 1/18 + 20/81 = 49/162

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