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What do you do to check if a number is rational or irrational? In the explanation use a rational and irrational number.

  • Math -

    if it's an integer, it's obviously rational: 3,-10

    if it's a terminating decimal, it's obviously rational 12.3978

    If it's a repeating decimal, it's rational:
    12.278963 = 12.27 + 8963/1000000

    Otherwise it's irrational:
    √2 = 1.41421356...

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