# I don't understand just why

so apparently 0 divided by 0 is just undefined. I don't understand at all why, seeing that its pretty much just everything. My opinion is that 0 divided by 0 is actually any number, that there is no wrong answer, only correct ones. But I'm not a professional, so somebody help me with this.

Note by Odin Wang
10 months, 2 weeks ago

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$\text{un} \underline{\text{defined}}$ is literally not defined, which means we don't know. Division by Zero is undefined as of now. This is because it leads to crazy stuff like this -

$\dfrac{0}{0} = \dfrac{0 \times 1}{0} \Rightarrow 0 \times 1 = \dfrac{1}{0} \Rightarrow \dfrac{1}{0} = 0 \implies 1 = 0 \ \text{which isn't true.....}$

- 10 months, 2 weeks ago

- 10 months, 2 weeks ago

hmm

- 10 months, 2 weeks ago

definitely some kind of science behind this, @Percy Jackson

- 10 months, 2 weeks ago

I usually define it as "infinity" for reasons similar to what you've laid down, but it's considered just "undefined" in math as a whole I think. Could be wrong, I'm only studying.

- 10 months, 2 weeks ago

🤔, same here, but undefined literally means the same thing as “there is no answer”, IMO. So anything that’s not zero divided by zero would be undefined, but 0 divided by zero has answers, but just like some graphing equations, has infinite answers.

- 10 months, 2 weeks ago

actually more like one answer: 0

- 10 months, 2 weeks ago

Yes, basically if 1 divided by 0 = ∞,

then ∞ x 0 = 1

then, (∞ x 0) + (∞ x 0) = 2

but (∞ x 0) + (∞ x 0) = 2 and

(∞ x 0) + (∞ x 0) = (∞ + ∞) + (0 + 0) = 2

literally meaning 1 =2 which is impossible

- 10 months, 2 weeks ago

I see

- 10 months, 2 weeks ago

Ok

- 10 months, 2 weeks ago