Step 1: Start with the fraction 100/3.

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

100 ÷ 3 = 33.3333

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

33.3333 × 100 = 3333.33%

Final Answer: 100/3 as a percentage is 3333.33%.