Answers

Add 21/84 and 3/84

21/84 + 3/84 is 2/7.

Steps for adding fractions

1. Add the two fractions:
   21/84 + 3/84 = 21 + 3/84 = 24/84
2. 24/84 simplified gives 2/7
3. So, 21/84 + 3/84 = 2/7

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