Step 1: Start with the fraction 25/64.

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

25 ÷ 64 = 0.3906

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

0.3906 × 100 = 39.06%

Final Answer: 25/64 as a percentage is 39.06%.