divide: $\frac{-45}{9}=square$

, the result is negative. Calculate $\frac{45}{9}$. $\frac{45}{9}=5$

Step2: Apply sign rule

Since the numerator is -45 (negative) and the denominator is 9 (positive), the result is negative. So $\frac{-45}{9}=- 5$.

Answer:

$-5$