Answers

Add 28/16 and 36/81

1^st number: 1 12/16, 2^nd number: 36/81

28/16 + 36/81 is 79/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 81 is 1296
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1296
2. For the 1st fraction, since 16 × 81 = 1296,
   28/16 = 28 × 81/16 × 81 = 2268/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   36/81 = 36 × 16/81 × 16 = 576/1296
4. Add the two like fractions:
   2268/1296 + 576/1296 = 2268 + 576/1296 = 2844/1296
5. 2844/1296 simplified gives 79/36
6. So, 28/16 + 36/81 = 79/36
   In mixed form: 27/36

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