Answers

Add 7/72 and 21/72

7/72 + 21/72 is 7/18.

Steps for adding fractions

1. Add the two fractions:
   7/72 + 21/72 = 7 + 21/72 = 28/72
2. 28/72 simplified gives 7/18
3. So, 7/72 + 21/72 = 7/18

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