By definition, a product is the result of a multiplication. So, in order to find the product asked in the exercise, you must multiply the numbers.
Remember the rules for the signs in multiplication:

To multiply fractions the procedure is the following:

So, given this expression:

You can rewrite it in this form:

Then, multiplying the fractions, you get this product:

Simpliying the product, you get that the answer is:
