Answers

Add 12/21 and 18/21

12/21 + 18/21 is 10/7.

Steps for adding fractions

1. Add the two fractions:
   12/21 + 18/21 = 12 + 18/21 = 30/21
2. 30/21 simplified gives 10/7
3. So, 12/21 + 18/21 = 10/7
   In mixed form: 13/7

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