Answers

Add 7/21 and 8/21

7/21 + 8/21 is 5/7.

Steps for adding fractions

1. Add the two fractions:
   7/21 + 8/21 = 7 + 8/21 = 15/21
2. 15/21 simplified gives 5/7
3. So, 7/21 + 8/21 = 5/7

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