Answers

Add 12/42 and 9/42

12/42 + 9/42 is 1/2.

Steps for adding fractions

1. Add the two fractions:
   12/42 + 9/42 = 12 + 9/42 = 21/42
2. 21/42 simplified gives 1/2
3. So, 12/42 + 9/42 = 1/2

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