Answers

Add 21/2 and 63/42

1^st number: 10 1/2, 2^nd number: 1 21/42

21/2 + 63/42 is 12/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 42 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 2 × 21 = 42,
   21/2 = 21 × 21/2 × 21 = 441/42
3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
   63/42 = 63 × 1/42 × 1 = 63/42
4. Add the two like fractions:
   441/42 + 63/42 = 441 + 63/42 = 504/42
5. 504/42 simplified gives 12/1
6. So, 21/2 + 63/42 = 12/1

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