The Closure Property states that when two numbers from a specific set are combined using a particular operation (such as addition or multiplication), the result will also belong to that set.
In this case, you are multiplying the numbers \( \frac{4}{5} \) (a fraction) and \( 15 \) (an integer).
First, let's compute the product:
\[ \frac{4}{5} \times 15 = \frac{4 \times 15}{5} = \frac{60}{5} = 12. \]
The result of the multiplication is \( 12 \), which is an integer.
Therefore, since both \( \frac{4}{5} \) (a rational number) and \( 15 \) (an integer) belong to the set of rational numbers, and their product \( 12 \) is also a rational number, we can conclude that the product of \( \frac{4}{5} \) and \( 15 \) is a rational number.
So, the type of number is rational.