Answers

Add 63/15 and 45/30

1^st number: 4 3/15, 2^nd number: 1 15/30

63/15 + 45/30 is 57/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 30 is 30
   
   Next, find the equivalent fraction of both fractional numbers with denominator 30
2. For the 1st fraction, since 15 × 2 = 30,
   63/15 = 63 × 2/15 × 2 = 126/30
3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
   45/30 = 45 × 1/30 × 1 = 45/30
4. Add the two like fractions:
   126/30 + 45/30 = 126 + 45/30 = 171/30
5. 171/30 simplified gives 57/10
6. So, 63/15 + 45/30 = 57/10
   In mixed form: 57/10

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