Question

how do u know if variables go in numerator or denominator? how do u know where it goes?

Answer 1

Answer:

A variable goes as a denominator if it's index is negative.

For example:

$x^{-1}y=\frac{y}{x}$

The index of x is -1, this makes it a denominator.

The given expression:

$x^4y^{-14}z^4=\frac{x^4z^4}{z^{14}}$