• chiliedogg@lemmy.world
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    6 months ago

    “.9…” is repeating, but rational. So it’s actually “1” . Let’s do the math.

    .9… / 3 = .3…

    .3… = 1/3

    1/3 x 3 = 3/3

    .9… = 3/3

    3/3 = 1

    .9… = 1

    Still not convinced? We’ll use algebra instead of fractions.

    0.9… = x

    10x = 9.9…

    10x - 0.9… = 9

    9x = 9

    x = 1