The sum of a rational number and a rational number is sometimes rational

The sum of a rational number and a rational number is ALWAYS rational

Step-by-step explanation:

The sum of two rational numbers is rational. Here is one way to explain why it is true: Any two rational numbers can be written and , where are integers, and and are not zero. Multiplying or adding two integers always gives an integer, so we know that and are all integers.

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