Yeah, yea yea!
What is 1/Infinity?

If you assume 0, the the equation 1-1 = infinity minus infinity would be true, but then add one to each side, 1+1 = 2, infinity+1 = infinity, so then the equation infinity - infinity = 2-1 or infinity- infinity= 2, so it's equal to every number using that process, so this equation is undefined

Infinity is not a number , it just represents uncountability. It is a concept. So normal numerical algebra cannot be applied to it. So 1/infinity is not 0, It is undefined.

Technically, we can calculate with infinity BUT, we have to do it in limits. Technically speaking, infinity minus infinity is 0 because both the limit of x-x and (the limit of X) minus (the limit of X) are zero
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It is infinity/infinity. Which is positive Infinity, any positive real, and 1/infinity.
So it is rather strange, Folks.