Answers

Add 10/84 and 54/81

10/84 + 54/81 is 11/14.

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,
   10/84 = 10 × 27/84 × 27 = 270/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   54/81 = 54 × 28/81 × 28 = 1512/2268
4. Add the two like fractions:
   270/2268 + 1512/2268 = 270 + 1512/2268 = 1782/2268
5. 1782/2268 simplified gives 11/14
6. So, 10/84 + 54/81 = 11/14

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