Step 1: Start with the fraction 25/45.

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

25 ÷ 45 = 0.5556

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

0.5556 × 100 = 55.56%

Final Answer: 25/45 as a percentage is 55.56%.