Answers

Add 84/16 and 40/81

1^st number: 5 4/16, 2^nd number: 40/81

84/16 + 40/81 is 1861/324.

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,
   84/16 = 84 × 81/16 × 81 = 6804/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   40/81 = 40 × 16/81 × 16 = 640/1296
4. Add the two like fractions:
   6804/1296 + 640/1296 = 6804 + 640/1296 = 7444/1296
5. 7444/1296 simplified gives 1861/324
6. So, 84/16 + 40/81 = 1861/324
   In mixed form: 5241/324

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