Answers

Add 18/63 and 6/63

18/63 + 6/63 is 8/21.

Steps for adding fractions

1. Add the two fractions:
   18/63 + 6/63 = 18 + 6/63 = 24/63
2. 24/63 simplified gives 8/21
3. So, 18/63 + 6/63 = 8/21

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