What is 3 4 of an hour?

Three-fourths of an hour is equivalent to 45 minutes.

In terms of fractions, an hour can be divided into four equal parts, each representing a quarter of an hour. So, if three of these quarters are taken, it would result in three-fourths or 3/4 of an hour.

In practical terms, 45 minutes is a commonly used time interval. It is often used for scheduling or measuring the duration of tasks and activities. For example, someone might say "I will be there in 45 minutes" or a meeting might be scheduled for 45 minutes to allow for efficient time management.