Answers

Add 8/84 and 28/81

8/84 + 28/81 is 250/567.

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,
   8/84 = 8 × 27/84 × 27 = 216/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   28/81 = 28 × 28/81 × 28 = 784/2268
4. Add the two like fractions:
   216/2268 + 784/2268 = 216 + 784/2268 = 1000/2268
5. 1000/2268 simplified gives 250/567
6. So, 8/84 + 28/81 = 250/567

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