Answers

Add 70/84 and 2/81

70/84 + 2/81 is 139/162.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 81 is 2268
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2268
2. For the 1st fraction, since 84 × 27 = 2268,
   70/84 = 70 × 27/84 × 27 = 1890/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   2/81 = 2 × 28/81 × 28 = 56/2268
4. Add the two like fractions:
   1890/2268 + 56/2268 = 1890 + 56/2268 = 1946/2268
5. 1946/2268 simplified gives 139/162
6. So, 70/84 + 2/81 = 139/162

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