Answers

Add 28/72 and 20/72

28/72 + 20/72 is 2/3.

Steps for adding fractions

1. Add the two fractions:
   28/72 + 20/72 = 28 + 20/72 = 48/72
2. 48/72 simplified gives 2/3
3. So, 28/72 + 20/72 = 2/3

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