Simplify a rational expression with two variables

The video tutorial reviews a previous lesson on dividing expressions with exponents. It breaks down the problem into three parts: simplifying the fraction 12/16, applying the rules of exponents to x and y terms, and combining the results. The teacher explains how to simplify fractions by finding common factors and demonstrates the subtraction of exponents when dividing terms with the same base. The final simplified expression is presented as 3x^4y/4.

What is the first problem discussed in the class regarding the division of numbers?

Explain why 16 does not divide into 12 evenly.

What is the simplified form of 12 over 16, and how did you arrive at that answer?

Describe the rules of exponents that were applied when dividing exponents with the same base.

What is the final simplified answer obtained after applying the rules of exponents to the given expression?