How to know that number is rational or irrational

1.	How to know that number is rational or irrational
Answer» All\xa0numbers\xa0that are not\xa0rational\xa0are considered\xa0irrational. An\xa0irrational number\xa0can be written as a decimal, but not as a fraction. An\xa0irrational number\xa0has endless non-repeating digits to the right of the decimal point.

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