Answers

Add 12/80 and 30/80

12/80 + 30/80 is 21/40.

Steps for adding fractions

1. Add the two fractions:
   12/80 + 30/80 = 12 + 30/80 = 42/80
2. 42/80 simplified gives 21/40
3. So, 12/80 + 30/80 = 21/40

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