Answers

Add 70/4 and 21/81

1^st number: 17 2/4, 2^nd number: 21/81

70/4 + 21/81 is 959/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 4 × 81 = 324,
   70/4 = 70 × 81/4 × 81 = 5670/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   21/81 = 21 × 4/81 × 4 = 84/324
4. Add the two like fractions:
   5670/324 + 84/324 = 5670 + 84/324 = 5754/324
5. 5754/324 simplified gives 959/54
6. So, 70/4 + 21/81 = 959/54
   In mixed form: 1741/54

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