Step 1: Start with the fraction 11/80.

Step 2: To convert a fraction into a percentage, divide the numerator by the denominator.

11 ÷ 80 = 0.1375

Step 3: Multiply the result by 100 to get the percentage.

0.1375 × 100 = 13.75%

Final Answer: 11/80 as a percentage is 13.75%.