Answers

Add 36/63 and 15/12

1^st number: 36/63, 2^nd number: 1 3/12

36/63 + 15/12 is 51/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 12 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   36/63 = 36 × 4/63 × 4 = 144/252
3. Likewise, for the 2nd fraction, since 12 × 21 = 252,
   15/12 = 15 × 21/12 × 21 = 315/252
4. Add the two like fractions:
   144/252 + 315/252 = 144 + 315/252 = 459/252
5. 459/252 simplified gives 51/28
6. So, 36/63 + 15/12 = 51/28
   In mixed form: 123/28

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