• hemko@lemmy.dbzer0.com
    link
    fedilink
    English
    arrow-up
    11
    arrow-down
    1
    ·
    edit-2
    10 months ago

    X/0.5 = X*2

    Division by less than 1 is essentially multiplying with extra steps

    • Paradachshund
      link
      fedilink
      arrow-up
      5
      ·
      10 months ago

      Huh, thanks for the insight. I’ve never been able to get my head around weird division like this, and that sounds like a great rule of thumb for thinking about it.

      • TastehWaffleZ@lemmy.world
        link
        fedilink
        arrow-up
        5
        ·
        edit-2
        10 months ago

        Dividing by a fraction is the same as flipping one it on its head and multiplying it.

        0.25/0.5 is (1/4)/(1/2)

        To multiply it we’d flip one, either works but for this example I decided to flip the second one: (1/4) * (2/1)

        The top half of the fractions (numerators) multiply together, then the bottoms (denominators) multiply together. (1*2)/(4*1) = 2/4 which reduces to 1/2