Answers

Add 30/4 and 15/81

1^st number: 7 2/4, 2^nd number: 15/81

30/4 + 15/81 is 415/54.

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,
   30/4 = 30 × 81/4 × 81 = 2430/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   15/81 = 15 × 4/81 × 4 = 60/324
4. Add the two like fractions:
   2430/324 + 60/324 = 2430 + 60/324 = 2490/324
5. 2490/324 simplified gives 415/54
6. So, 30/4 + 15/81 = 415/54
   In mixed form: 737/54

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