Answers

Add 20/21 and 1/21

20/21 + 1/21 is 1/1.

Steps for adding fractions

1. Add the two fractions:
   20/21 + 1/21 = 20 + 1/21 = 21/21
2. 21/21 simplified gives 1/1
3. So, 20/21 + 1/21 = 1/1

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