Step 1: Start with the fraction 31/28.

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

31 ÷ 28 = 1.1071

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

1.1071 × 100 = 110.71%

Final Answer: 31/28 as a percentage is 110.71%.