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29 August, 13:14

The number 0.4 can written as 4/10, so it is a rational number

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  1. 29 August, 13:54
    0
    Yes because rational numbers can be turned into a fraction and as you see that's what you did ...

    0.4=4/10

    Your answer is yes it is a rational number.
  2. 29 August, 16:14
    0
    True

    An easy way to tell if a number is irrational if you cannot count it, or convert it into a decimal/fraction.

    Such as pie, square root of 11, etc.
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