Step 1: Start with the fraction 13/52.

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

13 ÷ 52 = 0.25

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

0.25 × 100 = 25.0%

Final Answer: 13/52 as a percentage is 25.0%.