I have a math quiz tomorrow and I don’t understand how to simplify exponent fractions. Please simplify these two equations and explain in detail how you got this answer.

Answer:
6) y^4
Step-by-step explanation:
(This is for #6)
First we need to simplify, 20x^6 y^5/40x^6 turns into 20x^6 y^4
Since we can't simplify it anymore, this is the answer. (it's not a fraction anymore)