Answers

Add 9/21 and 12/21

9/21 + 12/21 is 1/1.

Steps for adding fractions

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

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