Convert Fraction to Percentage: Solving 99.9/100

To solve this problem, we'll follow these steps:

• Step 1: Identify the given fraction, which is $\frac{99.9}{100}$.

• Step 2: Use the percentage conversion formula, which states that to convert a fraction to a percentage, we multiply by 100.

• Step 3: Perform the calculation: $\frac{99.9}{100} \times 100$.

Now, let's work through each step in detail:
Step 1: The fraction given is $\frac{99.9}{100}$.
Step 2: To convert this fraction into a percentage, we utilize the formula: $\frac{99.9}{100} \times 100\% = 99.9\%$.
Step 3: When we carry out the multiplication, it is clear that $\frac{99.9}{100} \times 100 = 99.9\%$.

Thus, the solution to the problem is $99.9\%$.