Answers

Add 28/56 and 5/81

28/56 + 5/81 is 91/162.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 81 is 4536
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4536
2. For the 1st fraction, since 56 × 81 = 4536,
   28/56 = 28 × 81/56 × 81 = 2268/4536
3. Likewise, for the 2nd fraction, since 81 × 56 = 4536,
   5/81 = 5 × 56/81 × 56 = 280/4536
4. Add the two like fractions:
   2268/4536 + 280/4536 = 2268 + 280/4536 = 2548/4536
5. 2548/4536 simplified gives 91/162
6. So, 28/56 + 5/81 = 91/162

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