# Why can’t you divide by zero? – TED-Ed

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In the world of math, many strange results are possible when we change the rules. But there’s one rule that most of us have been warned not to break: don’t divide by zero. How can the simple combination of an everyday number and a basic operation cause such problems?

Lesson by TED-Ed, animation by Nick Hilditch.

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This is quite helpful for my engineering maths

Same fam… 4th year Mechanical Engineer with two minors in Renewable Energy and Mathematics

Not sure if bait, but limits of functions that divide by 0 are used everywhere in calculus, explicitly or not.

Boy if you study engineering and find this helpful, it means you have a long way to go. Good luck

Capitao_Is _Life it doesn’t hahah, I’m struggling here. But it does help me understand more on the background of maths. Sorry for trolling.

I tried to divide by zero once

Had to find another univerve soon after mine was destroyed

The Ace Of Spades so did I and then I tried to look for new eyes cuz mine were plucked by the teacher X)

Identity of Rick Sanchez confirmed

Do you get negative zero?

So in the universe you originate from the Ace of Spades is a card with seven hearts?

The Ace Of Spades Welcome! Let me get you up to date! Racism is alive and well, Trumps in office, North Korea might chill with their nukes, America’s got gun issues, China will rule the next century! Better or worse this is the universe u chose

Segmentation fault.

Continual Improvement you again?

because there’s a fine line between a numerator and a denominator…

And the division is clear in that..

Jason Harris i see what you did there👀

LOL to everyone!!!!

One of the best parts are some of the replies. They’re an big plus!

I rarely like comments. You deserved this one 👏

When you can divide nothing, you have a problem

But what is nothing

「Exvrn」 You’re nothing

Ħakito 7*0=0, dividing a number by infinity isn’t truly 0, but an infinitesimal, or a value so small it can’t be measured. On the other hand, dividing by an infintesimal would be infinity because it would be an extremely extremely small non-zero number.

To clarify, no matter how large a number is even a sextillion digits long or more, dividing by it will never be equal to zero, and since infinity is a number at the end of an infinite list of numbers, dividing by it will never be zero. It’s impossible, we write it as zero because for all intents and purposes it is indistinguishable from zero, because it’s impossible to comprehend a decimal written as an infinite string of 0s followed by 1, or 0.000000…1.

OK let’s make it simple you have let’s say 5 Candy’s you want to equally divided them to 0 people now how much a person get well he get error because there is no person

diamond kane What’s 0 factorial or 0!?

‘0’ is my favourite number; because it has no value , just Like me.

AbramAb MUDAMUDAMUDAMUDAMUDAMUDAMUDAMUDAA!

Jimmy George

It depends on what you understand as ‘value’. Because the concept of 0 had a ridicously important role in our history, from its role in ancient civilizations to our current world of computer technology.

So stop understimating your own values, snowflake.

(っ’-‘)╮=͟͟͞͞💖

Well 0 is technically the biggest negative number which means your better than an infinite amount of people negative people

Like a White Crayon

Well, if you want the Universe to collapse upon itself, you can certainly divide by zero.

sure let’s try!!

Where do I have to stand to die as fast as possible when it happens?

Lisa N. Ikr thats me right now. Lol why do we keep trying to make life so complicated…

The bug someone left while developing the universe..

True

In soviet russia 0 divides you

lol

lol

But then wouldn’t you be 1 because 0 divided by anything is 1

Ibrahim Mudassar incorrect

TED-Ed – giving answers to questions I didn’t even know I wanted answered! 💛

Lol you are everywhere!

Heyyy, you again. You had 1k subs when I first saw you, now you’re at 5k. Great change

you are everywhere… there last 3 videos clicked your comments where trending at the top.

Oh! Hi Katie!

Science with Katie BEGONE THOT

*WEAKENING OF REALITY INTENSIFIES*

Idk, ask Siri.

i asked siri and the answer was “undifined”

Owen Langmead try asking her what is 0 divided by zero

i did

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Description Untitled 😂🤣🤣😂🤣

I tried dividing by zero at home once

Now I’m homeless

congratulations…..I too did the same thing and I got homeless too!!

Isaiah Isijola what’s the connection of one’s skin colour on having a home? I’m so confused right now

Jehiah Corda the connection is called stereotype.

Isaiah Isijola m’dude racism ain’t cool

Shouldn’t you be universeless too?

3:08 “Imagining that we know nothing about infinity already”

But at 3:27 you suddenly know that inf+inf=inf. Not sure what to think about this.

Punocchio

ab + ab = b (a + a)

That’s what he did.

thanks

But (1/0)^2 is 1^2/0^2 which is still 1/0.

Though he did use distributivity rules that he has only proved for all real numbers, not including infinity (at that point of the definition of infinity). The video has a good first half, explaining the actual definition of division, but then kinda drops the ball on the mathematical exactitude (e.g. the square root of -1 thing). Still for most people a good video I’d say.

Joel Costa Distribuitivity rule is not proven, it’s an axiom of mathematics, used to define the multiplication and summation. In fact, all the 4 basic operations are defined by their properties (commutative, distributive etc.), and those properties are axiomatic, which means they are true by definition.

Dividing by zero is not ruled out by mathematics, it’s just that, if you allow to divide by zero, it follows that all numbers are equal to zero. In fact, all the axioms of mathematics still work in that context, it’s just that this is not a really interesting scenario.

That green-bearded man looked sad after hearing it was a story for another day. I would love to hear that story explained in such an affordable and picturesque way. Love your videos!!

yuranival Becouse 0 is not a number.

That was Bernard Riemann. He was a pretty melancholy person throughout his life. His mathematics is super neat though!

Hahaha I didn’t notice

Imagine that you have zero cookies and you split them evenly among zero friends. How many cookies does each person get? See? It doesn’t make sense. And Cookie Monster is sad that there are no cookies, and you are sad that you have no friends

This is Siri answer if you ask it “what is 0 divided by 0”

But you can break a cookie into a million pieces to the point where you have an insignificant piece you cant enjoy 😛

Ok, lemme try to clear this up a bit.

Let’s say we have to find the value of x where x=0/0.

That means, x*0=0 ——(i)

Now guess what should the value of x to keep the equation (i) true.

The answer is… any number is possible because multiplying any number by zero results in zero.

So, there is no definite or determined value of 0/0. That’s why this case is called indeterminate form.

However… if you get an x/y term where both x and y tend to zero, then you might need to work on the expression to get the exact result and that’s why we have to solve the problems related to finding limits.

Better than a ted ed explanations…

This comment should have trigger warnings

Just think what times zero is 10

10/0*0 is 10. The 0s cancel each other out, so simplify it and it’s just 10 = 10.

∞ + 1 = ∞

MUTAFUCA infinity is not a number. You can’t add it up

impossible, anything times 0 = 0

Infinity isn’t a number. Another reason you can say it’s undefined is that 1/0 could be either infinity or negative infinity. Also, if you have something that seems to approach zero times infinity if two numbers get bigger or smaller, then it does approach something. Any number in fact. So things like 0*infinity and 0/0 and infinity/infinity can actually equal any number. It depends on how you approach it.

Yes, and the mitochondria is the powerhouse of the cell

technically mitochondria is the plural form so it should be: the *mitochondrion* is the powerhouse of the cell

and the energy currency of the cells is ATP , or Adenosine Tri-Phosphate

Biology memes

HAHAHAHAHA

i want to add a joke chemistry joke but NaH.

Your universe collapsed because you tried to divide 0 ÷ 0?

Well Morty move to another universe because he wanted a girlfriend so don’t feel bad

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In my mind, I say division is giving a fixed number of ice-cream to a fixed number of kids. If I have 10 ice-creams, and 5 kids I can give them to, how many ice-creams does one kid get? The answer is 10/5=2. However, if I have 10 ice-creams, but there aren’t any kids that I can give them to, how many does one kid get? Well, we can’t say zero OR 10, which means such an operation is undefined.

What about Lelouch? He got divided by Zero lol

If you divide by 0 it is 0 because say you have 10 cookies if you divided them between 2 people each person gets 5 well we all know that but if you have those 10 cookies to 0 people how many dose each person get well if you have no people to give them to then no one can take them there for each person gets 0 because know people can take them

Cuz if we do it we become god