Answers

Add 28/63 and 15/48

28/63 + 15/48 is 109/144.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 48 is 1008
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1008
2. For the 1st fraction, since 63 × 16 = 1008,
   28/63 = 28 × 16/63 × 16 = 448/1008
3. Likewise, for the 2nd fraction, since 48 × 21 = 1008,
   15/48 = 15 × 21/48 × 21 = 315/1008
4. Add the two like fractions:
   448/1008 + 315/1008 = 448 + 315/1008 = 763/1008
5. 763/1008 simplified gives 109/144
6. So, 28/63 + 15/48 = 109/144

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