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11 June, 13:38

If x + y is rational, must x and y each be rational?

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  1. 11 June, 13:45
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    No.

    If a rational number can be an integer, x and y could be 5.5 and. 5, or something that adds up to (number).0. This means, if the two non-rational numbers add up, they could be irrational, but the result isn't.
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