Answers

Add 5/28 and 42/81

5/28 + 42/81 is 527/756.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 81 is 2268
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2268
2. For the 1st fraction, since 28 × 81 = 2268,
   5/28 = 5 × 81/28 × 81 = 405/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   42/81 = 42 × 28/81 × 28 = 1176/2268
4. Add the two like fractions:
   405/2268 + 1176/2268 = 405 + 1176/2268 = 1581/2268
5. 1581/2268 simplified gives 527/756
6. So, 5/28 + 42/81 = 527/756

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