Step 1: Start with the fraction 13/45.

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

13 ÷ 45 = 0.2889

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

0.2889 × 100 = 28.89%

Final Answer: 13/45 as a percentage is 28.89%.