One of those days

Comments

• wizzor@sopuli.xyz ⁨14⁩ ⁨hours⁩ ago

  Without seeing the question…

  It’s perfectly normal to require the answer to be given in fractions instead of decimals if the question is given in fractions.

  source

  • thebestaquaman@lemmy.world ⁨12⁩ ⁨hours⁩ ago

    That’s absolutely stupid if you’re talking about a number that can be represented exactly in both notations.

    source

    • wizzor@sopuli.xyz ⁨4⁩ ⁨hours⁩ ago

      Unless the course or assignment is specifically about fractions.

      At least I was thought to use the same format for results as the assignment.

      source
    • stupidcasey@lemmy.world ⁨10⁩ ⁨hours⁩ ago

      Calculators can make decimal easy and fractions hard when doing it yourself fractions are much easier it’s an anti-cheat of sorts

      source
  • railway692@piefed.zip ⁨11⁩ ⁨hours⁩ ago

    Only if that requirement is explicitly stated in the question.

    source
  • baines@lemmy.cafe ⁨12⁩ ⁨hours⁩ ago

    what is normal about that stupid requirement?

    i played those stupid games and got my As but fuck do i not miss those online grade math sites

    source
  • stupidcasey@lemmy.world ⁨10⁩ ⁨hours⁩ ago

    Calculators can make decimal easy and fractions hard when doing it yourself fractions are much easier it’s an anti-cheat of sorts

    source

    • expr@programming.dev ⁨8⁩ ⁨hours⁩ ago

      Modern calculators can switch modes between decimal and fractions. It’s pretty irrelevant.

      Also, someone may do the problem themselves using any number of means that involve decimals. Or maybe they simply prefer to write in decimal. Either way, the program is simply wrong.

      source
    • OddMinus1@sh.itjust.works ⁨6⁩ ⁨hours⁩ ago

      I heavily doubt this is the reason. It would fail so many honest users while catching a few cheaters. And the cheaters could easily avoid getting caught by using the correct mode on a decent calculator.

      source
• echolalia@lemmy.ml ⁨13⁩ ⁨hours⁩ ago

  This is from a Pearson online graded thing, if you don’t happen to recognize it. It probably would have taken 41/4 as a correct answer as well (IMO 40 1/4 is ambiguous, improper).

  The software is more than capable of determining that 40.25=40+1/4 so its not really excusable (unless its specifically trying to teach fractions for middle schoolers or something)

  That said, A lot of my calc 3 homework (multi variable calculus) in college was run by Pearson, and while it wasn’t perfect, the fact that it was autograded with multiple attempts allowed made learning the material easy. Immediate feedback is incredible.

  Fuck Pearson though, honestly. This shit is expensive and it’s still got noticeable flaws. Last Pearson course I took kept trying to get me to use their shitty AI and pay extra for shit. I’m a student, not a potential customer to shake down.

  source

  • untorquer@lemmy.world ⁨5⁩ ⁨hours⁩ ago

    Speaking from a decade ago but Khan Academy’s system(at the time called mastery, not sure what it is now) was leaps and bounds better for learning calculus.

    Also I’m pretty sure this meme is from back then too.

    source
  • noxypaws@pawb.social ⁨6⁩ ⁨hours⁩ ago

    Did they force you to pay Pearson just to submit required coursework?

    I remember that shit and it radicalized me against the textbook mafia

    source
  • edgemaster72@lemmy.world ⁨8⁩ ⁨hours⁩ ago

    I worked support for Pearson about 15 or so years ago and uh… yeah, fuck Pearson.

    source
  • CaptainBlagbird@lemmy.world ⁨12⁩ ⁨hours⁩ ago

    41/4 is 10.25

    source

    • deadbeef79000@lemmy.nz ⁨9⁩ ⁨hours⁩ ago

      Correct, but not what is shown in the OP.

      source
  • alyqz@lemmy.sdf.org ⁨12⁩ ⁨hours⁩ ago

    I agree in principal, but: 40 1/2 = 40/1 + 1/4 = 160/4 + 1/4 = 161/4

    source

    • echolalia@lemmy.ml ⁨12⁩ ⁨hours⁩ ago

      You right, I’m tired

      source
• unexposedhazard@discuss.tchncs.de ⁨14⁩ ⁨hours⁩ ago

  The correct answer would be 10 right?

  40 × 0.25 = 10

  source

  • T4V0@lemmy.pt ⁨13⁩ ⁨hours⁩ ago

    No, that’s a way to represent a fraction’s integer part.

    source

    • syklemil@discuss.tchncs.de ⁨12⁩ ⁨hours⁩ ago

      Depends on culture and level of education. For someone who comes from a culture where we use decimals, I’d interpret this in the math/physics class way, i.e. 10.

      source

      • -> View More Comments
    • ekky@sopuli.xyz ⁨12⁩ ⁨hours⁩ ago

      Might be. I’ve never seen it used that way, though, I know that some people prefer parentheses around the fraction to the right of integers.

      That said, even Wolframalpha appears to disagree, which I find mildly funny if what you say is true.

      source

      • -> View More Comments
  • mumblerfish@lemmy.world ⁨12⁩ ⁨hours⁩ ago

    Yes, but no. That notation is the dumbest one ever. Everywhere else a juxtaposition implies multiplication, except for fractions with integers to the left.

    source
• StrixUralensis@tarte.nuage-libre.fr ⁨13⁩ ⁨hours⁩ ago

  That’s a stupid notation

  source

  • deadbeef79000@lemmy.nz ⁨9⁩ ⁨hours⁩ ago

    Yep, 40 x 1/4 is ten.

    source
• Sprocketfree@sh.itjust.works ⁨9⁩ ⁨hours⁩ ago

  Who uses whole number with a fraction anyway?! This is either 40x(1/4) or 401/4 MADNESS!

  source

  • anton@lemmy.blahaj.zone ⁨3⁩ ⁨hours⁩ ago

    While it could be read as 40*(1/4), it actually means 40+1/4. 401/4 would be true madness.

    source
  • chonglibloodsport@lemmy.world ⁨7⁩ ⁨hours⁩ ago

    It’s a very common notation in North American recipes.

    • 3 1/4 cups of flour
    • 2 eggs
    • 1 tsp baking soda

    Etc!

    source

    • Sprocketfree@sh.itjust.works ⁨7⁩ ⁨hours⁩ ago

      Yea but even your example has a space. This one doesn’t. And the other 2 are whole numbers.

      source

      • -> View More Comments
• axEl7fB5@lemmy.cafe ⁨7⁩ ⁨hours⁩ ago

  is it just me who actually learnt mixed fractions/decimals in class?

  source
• nixus@anarchist.nexus ⁨10⁩ ⁨hours⁩ ago

  I gave up on khan academy after having this happen enough times.

  source