Multiply:
a. `4 xx (11)/(36)`

Answer

To solve the multiplication of the fraction \(4 \times \frac{11}{36}\), we will follow these steps:

### Step 1: Write the whole number as a fraction
We can express the whole number 4 as a fraction.
\[ 4 = \frac{4}{1} \]

### Step 2: Set up the multiplication of fractions
Now we can multiply the two fractions:
\[ \frac{4}{1} \times \frac{11}{36} \]

### Step 3: Multiply the numerators and the denominators
Multiply the numerators together and the denominators together:
\[ \frac{4 \times 11}{1 \times 36} = \frac{44}{36} \]

### Step 4: Simplify the fraction
Now we need to simplify \(\frac{44}{36}\). We can find the greatest common divisor (GCD) of 44 and 36, which is 4. Now we divide both the numerator and the denominator by 4:
\[ \frac{44 \div 4}{36 \div 4} = \frac{11}{9} \]

### Step 5: Convert to a mixed number (if necessary)
Since \(\frac{11}{9}\) is an improper fraction, we can convert it to a mixed number:
\[ 11 \div 9 = 1 \quad \text{(with a remainder of 2)} \]
So, we can write:
\[ \frac{11}{9} = 1 \frac{2}{9} \]

### Final Answer
Thus, the final answer is:
\[ \frac{11}{9} \quad \text{or} \quad 1 \frac{2}{9} \]

---