Answers

Add 18/42 and 21/42

18/42 + 21/42 is 13/14.

Steps for adding fractions

1. Add the two fractions:
   18/42 + 21/42 = 18 + 21/42 = 39/42
2. 39/42 simplified gives 13/14
3. So, 18/42 + 21/42 = 13/14

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