Answers

Add 2/84 and 56/81

2/84 + 56/81 is 811/1134.

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,
   2/84 = 2 × 27/84 × 27 = 54/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   56/81 = 56 × 28/81 × 28 = 1568/2268
4. Add the two like fractions:
   54/2268 + 1568/2268 = 54 + 1568/2268 = 1622/2268
5. 1622/2268 simplified gives 811/1134
6. So, 2/84 + 56/81 = 811/1134

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