• sushibowl@feddit.nl
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    1 year ago

    Intuitively speaking, how many times does half of a thing fit into a quarter of a thing? The answer is, exactly one half time.

    • ComradeKhoumrag@infosec.pub
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      1 year ago

      The math looks perfectly fine. But when people phrase “half of a quarter” I think they have (1/2)*(1/4) in mind, instead of 0.25/0.5

      • apotheotic (she/her)@beehaw.org
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        1 year ago

        But this isn’t “half of a quarter” this is “the reciprocal of a half, of a quarter”

        Half of a quarter is 0.25/2 or 0.25*1/2

        • ComradeKhoumrag@infosec.pub
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          1 year ago

          I know, but to me this meme doesn’t make sense to me unless I assume the person reading the math Expression is interpreting its real world application.

          25 / 5 = 5 and nobodies head exploded. That’s just evaluating a math Expression. .25 / .5 = .5 is the same. It’s not a “my brain can’t comprehend how to evaluate expressions” as the meme suggests.

          However, if someone who doesnt do much algebra thought to themselves “I need half of a quarter”, then I could understand why their brain might “hurt” as the meme suggests, for a similar reason why adding 20 degree Celsius water to 20 degree Celsius water doesn’t make 40 degree Celsius wate

          I’m probably reading into it too much, but the meme just doesn’t feel like a “mind fuck that keeps me up at night”. I’m looking for reasons to try and explain it, but it’s just a math expression at the end of the day

          • blindsight@beehaw.org
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            1 year ago

            I think you nailed the confusion in this meme.

            To simplify: it’s confusing that ½ = 0.5, but 1/2 ≠ 1/0.5

    • apotheotic (she/her)@beehaw.org
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      1 year ago

      I don’t think this was shared because people are finding it a “challenge” it just looks funny.

      It takes all of a few seconds for your actual mathematical processing to kick in and you go “oh yeah duh” but its just a funky little string of numbers.

      It lives in the same camp as how none of the >3 whole multiples of 17 feel like multiples of 17. 68? Preposterous.

    • southsamurai@sh.itjust.works
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      1 year ago

      It’s why my favorite way to troll the usual “why isn’t everyone on metric” goombahs is to tell them they’re just too lazy and/or dumb to do math with fractions.

  • feedum_sneedson@lemmy.world
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    1 year ago

    If you give half a person a quarter of a thing, how much would you be giving a full person? That’s right baby, half a thing. Don’t sweat it.

    • p3e7@lemm.ee
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      1 year ago

      I think, it is the real world logic that makes it hard to grasp. If you divide something with something small it becomes bigger. Mathematically it’s easy and makes sense, but it it’s somehow not intuitive. Especially for young me :)

    • SoylentBlake@lemm.ee
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      1 year ago

      Except that’s not what’s written.

      It’s 0.25/0.5

      Raising it exponentially would be

      2.5/5, or

      25/50=50

      1/2≠50. Does not compute.

  • LANIK2000@lemmy.world
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    1 year ago

    I just think of division as how many times the right expression fits inside the left expression. 0.5 fits into 0.25 only 0.5 aka 1/2 times, because only half of it fits.