SOLUTION: Can someone explain why 0,(9) is "equal" to 9/9?

Question 1207933: Can someone explain why 0,(9) is "equal" to 9/9?
Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
.

It is discussed and explained in all details in this Wikipedia article

https://en.wikipedia.org/wiki/0.999...

https://en.wikipedia.org/wiki/0.999...

It is also explained in every fundamental course / (textbook) of Calculus at the very beginning,
when the theory of real numbers is explained.

So, there is nothing mysterious in it. It is a routine fact of the theory or real numbers.

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