Step 1: Start with the fraction 42/45.

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

42 ÷ 45 = 0.9333

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

0.9333 × 100 = 93.33%

Final Answer: 42/45 as a percentage is 93.33%.