Answers

Add 28/63 and 45/12

1^st number: 28/63, 2^nd number: 3 9/12

28/63 + 45/12 is 151/36.

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,
   28/63 = 28 × 4/63 × 4 = 112/252
3. Likewise, for the 2nd fraction, since 12 × 21 = 252,
   45/12 = 45 × 21/12 × 21 = 945/252
4. Add the two like fractions:
   112/252 + 945/252 = 112 + 945/252 = 1057/252
5. 1057/252 simplified gives 151/36
6. So, 28/63 + 45/12 = 151/36
   In mixed form: 47/36

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