• Valthorn@feddit.nuEnglish
    1·
    5 months ago

    x=.9999…

    10x=9.9999…

    Subtract x from both sides

    9x=9

    x=1

    There it is, folks.

    • barsoap@lemm.eeEnglish
      1·
      5 months ago

      Somehow I have the feeling that this is not going to convince people who think that 0.9999… /= 1, but only make them madder.

      Personally I like to point to the difference, or rather non-difference, between 0.333… and ⅓, then ask them what multiplying each by 3 is.

      • Buglefingers@lemmy.worldEnglish
        1·
        1 month ago

        The thing is 0.333… And 1/3 represent the same thing. Base 10 struggles to represent the thirds in decimal form. You get other decimal issues like this in other base formats too

        (I think, if I remember correctly. Lol)

      • DeanFogg@lemm.eeEnglish
        01·
        4 months ago

        Cut a banana into thirds and you lose material from cutting it hence .9999