Answers

Add 3/18 and 70/81

3/18 + 70/81 is 167/162.

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,
   3/18 = 3 × 9/18 × 9 = 27/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   70/81 = 70 × 2/81 × 2 = 140/162
4. Add the two like fractions:
   27/162 + 140/162 = 27 + 140/162 = 167/162
5. So, 3/18 + 70/81 = 167/162
   In mixed form: 15/162

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