Step 1: Start with the fraction 6/40.

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

6 ÷ 40 = 0.15

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

0.15 × 100 = 15.0%

Final Answer: 6/40 as a percentage is 15.0%.