Answer:

Explanation:
An Inch or Inches (in plural) is an unit lenght. Its abbreviation can be:
or

A Square inch or Square inches (in plural) is a unit of area and its abbreviation can be:
The given expression is:

You can rewrite it in this form:

Then, you can follow these steps in order to solve it:
Step 1: Multiply the numerators (Remember that
).
Step 2: Multiply the denominators.
Step 3: Finally, divide the product in the numerator by the product in the denominator
Threfore, you get the following result:
