Step 1: Start with the fraction 20/2.

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

20 ÷ 2 = 10.0

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

10.0 × 100 = 1000.0%

Final Answer: 20/2 as a percentage is 1000.0%.