Evaluate: b. `11 xx (9)/(11)`

Answer

To evaluate the expression \( 11 \times \frac{9}{11} \), we can follow these steps:

### Step-by-Step Solution:

1. **Rewrite the expression**:
We can express \( 11 \) as a fraction. Thus, we rewrite \( 11 \) as \( \frac{11}{1} \).
\[ 11 \times \frac{9}{11} = \frac{11}{1} \times \frac{9}{11} \]

2. **Apply the multiplication rule for fractions**:
According to the rule for multiplying fractions, we multiply the numerators together and the denominators together.
\[ \frac{11 \times 9}{1 \times 11} \]

3. **Perform the multiplication**:
Now we calculate the numerator and the denominator:
\[ \frac{99}{11} \]

4. **Simplify the fraction**:
Next, we simplify \( \frac{99}{11} \) by dividing both the numerator and the denominator by 11.
\[ 99 \div 11 = 9 \]

5. **Final answer**:
Therefore, the value of \( 11 \times \frac{9}{11} \) is \( 9 \).

### Final Answer:
\[ 9 \]