Answers

Add 63/2 and 20/4

1^st number: 31 1/2, 2^nd number: 5 0/4

63/2 + 20/4 is 73/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 4 is 4
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4
2. For the 1st fraction, since 2 × 2 = 4,
   63/2 = 63 × 2/2 × 2 = 126/4
3. Likewise, for the 2nd fraction, since 4 × 1 = 4,
   20/4 = 20 × 1/4 × 1 = 20/4
4. Add the two like fractions:
   126/4 + 20/4 = 126 + 20/4 = 146/4
5. 146/4 simplified gives 73/2
6. So, 63/2 + 20/4 = 73/2
   In mixed form: 361/2

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