Answers

Add 35/4 and 21/81

1^st number: 8 3/4, 2^nd number: 21/81

35/4 + 21/81 is 973/108.

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,
   35/4 = 35 × 81/4 × 81 = 2835/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   21/81 = 21 × 4/81 × 4 = 84/324
4. Add the two like fractions:
   2835/324 + 84/324 = 2835 + 84/324 = 2919/324
5. 2919/324 simplified gives 973/108
6. So, 35/4 + 21/81 = 973/108
   In mixed form: 91/108

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