# Of the 1 3/4 hours you spend at a restaurant, 20 minutes is spent eating. What percentage of the time is spent eating?

20/105=4/21~=19% of the time was spent eating.

#### Explanation:

You spend $1 \frac{3}{4}$ hours at a restaurant and of that spend 20 minutes eating. To better compare these two numbers, let's convert the $1 \frac{3}{4}$ hours:

$1 \frac{3}{4} = \frac{7}{4} \implies \frac{7}{4} \text{ hours" xx 60=(7xxcancel60^15)/cancel4=105 " minutes}$

We can now say that of the 105 minutes in the restaurant, 20 were spent eating. We can put that into a fraction:

20/105=4/21~=19% of the time was spent eating.

We can also express it this way:

$4 : 17$ - that for every 4 minutes spent eating at the restaurant, 17 were spent not eating at the restaurant.