Answers

Add 12/81 and 9/4

1^st number: 12/81, 2^nd number: 2 1/4

12/81 + 9/4 is 259/108.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 4 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   12/81 = 12 × 4/81 × 4 = 48/324
3. Likewise, for the 2nd fraction, since 4 × 81 = 324,
   9/4 = 9 × 81/4 × 81 = 729/324
4. Add the two like fractions:
   48/324 + 729/324 = 48 + 729/324 = 777/324
5. 777/324 simplified gives 259/108
6. So, 12/81 + 9/4 = 259/108
   In mixed form: 243/108

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