Step 1: Start with the fraction 100/30.

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

100 ÷ 30 = 3.3333

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

3.3333 × 100 = 333.33%

Final Answer: 100/30 as a percentage is 333.33%.