Answers

Add 84/24 and 15/12

1^st number: 3 12/24, 2^nd number: 1 3/12

84/24 + 15/12 is 19/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 12 is 24
   
   Next, find the equivalent fraction of both fractional numbers with denominator 24
2. For the 1st fraction, since 24 × 1 = 24,
   84/24 = 84 × 1/24 × 1 = 84/24
3. Likewise, for the 2nd fraction, since 12 × 2 = 24,
   15/12 = 15 × 2/12 × 2 = 30/24
4. Add the two like fractions:
   84/24 + 30/24 = 84 + 30/24 = 114/24
5. 114/24 simplified gives 19/4
6. So, 84/24 + 15/12 = 19/4
   In mixed form: 43/4

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