Math Help - simplification?

a-a
_
a - a
_
b

not sure if that makes sense like that but im not entirely sure how to write it, basically a take away a over a take away a over b, simplified.

Would I be right to make the last part

a a
_-_
1 b

so it turns into 1-b because the top parts cancel each other out, so I'm left with a-a
_
1-b?

Or is that completely on the wrong track?

Did you mean ?

Nope. Hmm, how to explain it.

a-z
_
q - y
_
b

a=z=q=y, but hopefully it gives more clarification, its a minus z over q minus y over b.

edit: nope, cant get the underscores to stay spaced out how id like ><

I think you mean:

, well if this is the case let's simplify it:

,



There isn't any possible way to simplify this, if I apply this to your question:

,





It can't be simplified any further.

In case you have the thing that Defunkt wrote:





not possible because we divide by

We could've also seen this by:

(this is undefined)