Step 1: Start with the fraction 13/80.

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

13 ÷ 80 = 0.1625

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

0.1625 × 100 = 16.25%

Final Answer: 13/80 as a percentage is 16.25%.