Step 1: Start with the fraction 54/9.

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

54 ÷ 9 = 6.0

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

6.0 × 100 = 600.0%

Final Answer: 54/9 as a percentage is 600.0%.