Step 1: Start with the fraction 100/15.

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

100 ÷ 15 = 6.6667

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

6.6667 × 100 = 666.67%

Final Answer: 100/15 as a percentage is 666.67%.