Convert 3/4 Hour to Minutes: Time Unit Conversion Practice

To solve this problem, we'll convert $\frac{3}{4}$ hours into minutes:

• Step 1: Recognize that 1 hour is equal to 60 minutes.
• Step 2: Multiply the given fraction of an hour by 60 minutes/hour.

Let's perform the calculation:
Step 1: Given $\frac{3}{4}$ hours, we apply the conversion:
Step 2: $\frac{3}{4} \times 60 = 45$. This converts the fraction of an hour into minutes.

Therefore, $\frac{3}{4}$ hour is equivalent to 45 minutes.

Upon reviewing the multiple-choice options, the correct answer is choice 2: $45$.