Answers

Add 12/70 and 9/70

12/70 + 9/70 is 3/10.

Steps for adding fractions

1. Add the two fractions:
   12/70 + 9/70 = 12 + 9/70 = 21/70
2. 21/70 simplified gives 3/10
3. So, 12/70 + 9/70 = 3/10

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