Wacky infinites headache

[Firo Volondé]

So is ∞/∞ 1 or ∞?
and whats ∞-∞?
the only use i have for infinity is right way up smilies

∞
/
_

Both questions: the answer is ∞

∞*∞= ∞
Divide both sides by ∞, and you get ∞ = ∞ / ∞
∞+∞= ∞
Subtract ∞ from both sides, and you get ∞ = ∞ - ∞