Step 1: Start with the fraction 1/99.

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

1 ÷ 99 = 0.0101

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

0.0101 × 100 = 1.01%

Final Answer: 1/99 as a percentage is 1.01%.