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ganeshie8
 one year ago
How is this possible \[\frac{1}{4}\frac{3}{8} = \frac{1}{2}\]
ganeshie8
 one year ago
How is this possible \[\frac{1}{4}\frac{3}{8} = \frac{1}{2}\]

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ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3just found an awesome reasoning for how that is possible from one of our users xD

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5Haha, that's great :))

random231
 one year ago
Best ResponseYou've already chosen the best response.0wow youre a patient helper ganeshie ;)

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.1\[\frac14\frac38\\ =^? \frac{13}{48}\\ = \frac24\\ =\frac12\\ \]

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3Haha was just thrilled by how that user came up with such cute reasoning!

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5These kids on here are really smart, they just need the right push :P

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.1dw:1433833984854:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3thats my fav one! wrong reasoning, right answer they are called happy fractions or something...

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5And http://mathoverflow.net/questions/94742/examplesofinterestingfalseproofs

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3interesting, im still a bit clueless about identifying the flaw in that proof(youtube link) showing all triangles are equilateral ...

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Haha, nice solution. How do you solve this though?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I got 1/8 on this T_T!

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Wolfram says the answer is \(1/8\). How did it get to that figure?

geekfromthefutur
 one year ago
Best ResponseYou've already chosen the best response.1Without wolfram math i wouldn't be smart about math lol

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1\[\frac{2}{2} \times \frac{1}{4}  \frac{3}{8} \rightarrow \frac{2}{8}  \frac{3}{8} \rightarrow = \frac{1}{8}\]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1find the least common denominator on this... the sign was missing when I saw that reasoning

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Oh wow! Interesting method. Nice.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1actually that's common x.x anyone out there can use least common denominator

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1and by the way a  sign was dropped in that image....when clobber did the arithmetic 23 = 1 for the numerator

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1but he drew a 1 instead of a 1

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1I just believed that these problems were supposed to be solved by Wolfram because they're hard, so I always plugged these numbers into Wolfram. Didn't know people could actually solve these.

geekfromthefutur
 one year ago
Best ResponseYou've already chosen the best response.1Well you can it just takes a while longer to solve the problem but all that matters that getting it solved. Because not every problem is going to be easy as 2 + 2

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1what the...*bangs head*

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Anyway, thank you for sharing this method! More people should know about it. I'm about to finish highschool and my classmates also use Wolfram for solving fractions.

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3lol honestly i never found a satisfying explanation for why common denominator is needed when adding/subing fractions

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1O__________________________O! Okay, that's fine for checking answers, but students shouldn't be dependent on it. My university doesn't allow calculators or computers. Have fun with that

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5I don't think any mathematics department does ;)

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1wolfram shouldn't be abused... and sometimes even Mr.Wolfy himself makes mistakes

geekfromthefutur
 one year ago
Best ResponseYou've already chosen the best response.1Yea it cant solve every problem.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1there was a professor who allowed everything ... book, calculator...tablet...but he retired recently

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Haha, ganeshie, it should make sense though. You can add 1/8th and 4/8th of a cake like that, but you can't add 1/8th and half of a cake.

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1I will have to revise my fractions after finishing calculus.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1oh lol @UnkleRhaukus you just broke a math rule with your example.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5Oh I thought you were joking the whole time parth

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.1all triangles are equilateral

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1You hoped I was joking the whole time. :P

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1I guess I stretched it way too far.

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3nope it is fine, the joke is obvious to everyone ;p

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3should msg it to one of his gfs lol

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5Anyways check out those false proofs from that link, pretty cool :)

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1From comments: The mistake lies in the drawing. The lines are too sloppy and if you actually draw it out, you will see C* always lies on the other side of C (or B* on the other side of B), so subtracting C*C from AC does not make the conclusion valid anymore.

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1``` one of his gfs lol ``` Subtle, I like it.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1last semester I accidentally typed "Dan I love you" instead of "Dan I need your help" because I was working on a matlab code. T_T! I had to type to two people on os that it wasn't spam and it was an accident.

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Don't worry, Dan's a player. He just gets everyone to fall in love with him.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1This was before I had glasses, so yeah...I couldn't see well with small text

geekfromthefutur
 one year ago
Best ResponseYou've already chosen the best response.1Lol. and i wonder who else hes with xD

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1@Astrophysics Holy crap, hahaha.

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.1I like it how this post has completely gone off topic

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1To be fair, the topic isn't something eyecatching.

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.1All good @Astrophysics :)

Miracrown
 one year ago
Best ResponseYou've already chosen the best response.1@ganeshie8 can you please give us another prob?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5What is \[\huge 2^{2014}2^{2013}?\]

geekfromthefutur
 one year ago
Best ResponseYou've already chosen the best response.1crap it repeated my statment

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Sorry, wrong answer. Should be\[\huge 2^{2013}\]

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Or maybe you could do it "that" way:\[\large 2^{2014}  2^{2013} = 2^{2014  2013} = 2^1 = 2\]

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5Yeah haha, \[\huge 2^{2013}(2)  2^{2013} \implies 2^{2013}(21) = 2^{2013}\]

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.5Geniuses...ok what number am I thinking of?

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1You're just cashing in on hartnn's efforts.

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1In hartnn's pic, his arms are all bulgy and muscular. Coincidence? I think not.

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.0You should read the classic MathEd paper about Benny.

geerky42
 one year ago
Best ResponseYou've already chosen the best response.0\(\color{blue}{\text{Originally Posted by}}\) ganeshie8 How is this possible \[\frac{1}{4}\frac{3}{8} = \frac{1}{2}\] \(\color{blue}{\text{End of Quote}}\) It's isn't? What's so amazing about it anyway? All I see is user just happen to think that subtraction works like multiplication, hence did\(\frac{1}{4}\frac{3}{8} = \frac{13}{48}\)

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1^ which broke a math rule...
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