Answers

Add 18/60 and 9/60

18/60 + 9/60 is 9/20.

Steps for adding fractions

1. Add the two fractions:
   18/60 + 9/60 = 18 + 9/60 = 27/60
2. 27/60 simplified gives 9/20
3. So, 18/60 + 9/60 = 9/20

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