Convert 89% to a Fraction: Writing with Denominator 100

To solve this problem, we will convert the percentage to a fraction directly:

• Step 1: Understand that when expressing a percentage as a fraction, the number is divided by 100. For example, 89% means 89 per 100.
• Step 2: Write the fraction using the number 89 as the numerator and 100 as the denominator. The fraction thus becomes $\frac{89}{100}$.

Therefore, the percentage 89% expressed as a fraction with a denominator of 100 is $\frac{89}{100}$.

Hence, the correct answer to the problem is $\frac{89}{100}$.