Step 1: Start with the fraction 31/36.

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

31 ÷ 36 = 0.8611

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

0.8611 × 100 = 86.11%

Final Answer: 31/36 as a percentage is 86.11%.