Answers

Add 84/5 and 70/81

1^st number: 16 4/5, 2^nd number: 70/81

84/5 + 70/81 is 7154/405.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 5 × 81 = 405,
   84/5 = 84 × 81/5 × 81 = 6804/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   70/81 = 70 × 5/81 × 5 = 350/405
4. Add the two like fractions:
   6804/405 + 350/405 = 6804 + 350/405 = 7154/405
5. So, 84/5 + 70/81 = 7154/405
   In mixed form: 17269/405

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