The closure property refers to the idea that when you perform an operation (like addition, subtraction, multiplication, or division) on numbers from a certain set, the result will also be a member of that set.
In this case, you are multiplying \( \frac{4}{5} \) (a rational number) by 15 (an integer). The product is:
\[ \frac{4}{5} \times 15 = \frac{4 \times 15}{5} = \frac{60}{5} = 12 \]
Here, 12 is an integer. Since both rational numbers and integers are subsets of the real numbers, we can say:
- The product of \( \frac{4}{5} \) and 15 is an integer.
Thus, the answer to the question is that the product is an integer.