Answers

Add 84/48 and 40/81

1^st number: 1 36/48, 2^nd number: 40/81

84/48 + 40/81 is 727/324.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 81 is 1296
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1296
2. For the 1st fraction, since 48 × 27 = 1296,
   84/48 = 84 × 27/48 × 27 = 2268/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   40/81 = 40 × 16/81 × 16 = 640/1296
4. Add the two like fractions:
   2268/1296 + 640/1296 = 2268 + 640/1296 = 2908/1296
5. 2908/1296 simplified gives 727/324
6. So, 84/48 + 40/81 = 727/324
   In mixed form: 279/324

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