Step 1: Start with the fraction 5/40.

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

5 ÷ 40 = 0.125

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

0.125 × 100 = 12.5%

Final Answer: 5/40 as a percentage is 12.5%.