By what number should `(15)^(-1)` be divided so that the quotient may be equal to `(-5)^(-1)?`

Explanation

To solve the problem, we need to find the number by which \( (15)^{-1} \) should be divided so that the quotient equals \( (-5)^{-1} \).

### Step-by-Step Solution:

1. **Understand the problem**: We need to find a number \( x \) such that:
\[ \frac{(15)^{-1}}{x} = (-5)^{-1} \]
...