Answers

Add 40/28 and 1/81

1^st number: 1 12/28, 2^nd number: 1/81

40/28 + 1/81 is 817/567.

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,
   40/28 = 40 × 81/28 × 81 = 3240/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   1/81 = 1 × 28/81 × 28 = 28/2268
4. Add the two like fractions:
   3240/2268 + 28/2268 = 3240 + 28/2268 = 3268/2268
5. 3268/2268 simplified gives 817/567
6. So, 40/28 + 1/81 = 817/567
   In mixed form: 1250/567

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