SOLUTION: Name the subset of the real number to which each belongs 2/3

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Question 1122839: Name the subset of the real number to which each belongs 2/3
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.
There are several subsets of the set of all real numbers, to that the number 2/3 belongs.

They are:

    - Subset of all rational numbers;             (*)

    - Subset of all positive numbers;

    - Subset of all rational positive numbers.


      . . . Other examples are possible . . . 

But the most expected response is, probably, (*).