Answers

Add 28/84 and 20/84

28/84 + 20/84 is 4/7.

Steps for adding fractions

1. Add the two fractions:
   28/84 + 20/84 = 28 + 20/84 = 48/84
2. 48/84 simplified gives 4/7
3. So, 28/84 + 20/84 = 4/7

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