Step 1: Start with the fraction 1/20.

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

1 ÷ 20 = 0.05

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

0.05 × 100 = 5.0%

Final Answer: 1/20 as a percentage is 5.0%.