Step 1: Start with the fraction 13/18.

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

13 ÷ 18 = 0.7222

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

0.7222 × 100 = 72.22%

Final Answer: 13/18 as a percentage is 72.22%.