The expression $\frac{y}{y^2}$ can be simplified as follows:

$\frac{y}{y^2} = \frac{1}{y}$

This is because the $y$ in the numerator and one of the $y$'s in the denominator cancel out, leaving $\frac{1}{y}$.

Do you want more details or have any questions?

Here are 5 related questions to expand on this topic:

1. How do you simplify $\frac{x^2}{x^5}$?
2. What is the simplified form of $\frac{y^3}{y^6}$?
3. How do you simplify $\frac{a^2 b^3}{a^3 b^2}$?
4. How would you solve $\frac{2x}{4x^3}$?
5. How do negative exponents affect expressions like $\frac{1}{y^n}$?

Tip: When simplifying fractions with the same base in the numerator and denominator, subtract the exponents of like terms!