Answers

Add 84/36 and 18/81

1^st number: 2 12/36, 2^nd number: 18/81

84/36 + 18/81 is 23/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 36 × 9 = 324,
   84/36 = 84 × 9/36 × 9 = 756/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   18/81 = 18 × 4/81 × 4 = 72/324
4. Add the two like fractions:
   756/324 + 72/324 = 756 + 72/324 = 828/324
5. 828/324 simplified gives 23/9
6. So, 84/36 + 18/81 = 23/9
   In mixed form: 25/9

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