Answer:
x
Step-by-step explanation:
When writing out an canceling variable/exponents within a fraction, you always subtract the top and bottom. So...
[tex]\frac{x^{4}y^{3}}{x^{3}y^{4}}[/tex]
When you subtract, you always put the leftover variable in the spot that had the highest valued exponent.
So the equation simplifies to [tex]\frac{x}{y}[/tex]
x, is on top so it is the numerator.
