Fill the following blanks with correct numbers :
`(-13)xx…=91`

Answer

To solve the equation \((-13) \times \_\_ = 91\), we need to find the missing number that, when multiplied by \(-13\), gives us \(91\).

### Step-by-Step Solution:

1. **Understand the Equation**: We have \((-13) \times x = 91\), where \(x\) is the number we need to find.

2. **Identify the Operation**: Since we are multiplying \(-13\) by some number to get \(91\), we can use the inverse operation (division) to isolate \(x\).

3. **Divide Both Sides**: To find \(x\), we divide both sides of the equation by \(-13\):
\[ x = \frac{91}{-13} \]

4. **Calculate the Division**: Now, we perform the division:
\[ x = \frac{91}{-13} = -7 \]

5. **Conclusion**: Therefore, the missing number is \(-7\).

### Final Answer:
\[ (-13) \times (-7) = 91 \]