Question

If this cancels out, why is it 1?
http://newton.matem.unam.mx:8080/ejercicios/racionales/p0507.gif

Answer 1

Hmm, example:
\(\Large \dfrac{5}{5}\quad=\quad ?\)

Answer 2

Oh...it makes complete sense now...I am dividing by the same thing

Answer 3

Yah, the factors are not `cancelling` per-say.
Maybe we use that word too loosely in math.
They're dividing out.

Answer 4

Thanks :)