Question

A movie is 1 7/8 hours long. After 45 minutes, how much of the movie is left?

Answer 1

Answer:  67.5 minutes of movie was left.

Step-by-step explanation:  Given that a movie is $1\dfrac{7}{8}$ hours long.

We are to find the duration of the movie left after 45 minutes.

We have

$1~\textup{hour}=60~\textup{minutes}\\\\ \Rightarrow 1\dfrac{7}{8}~\textup{hour}=60\times\dfrac{15}{8}=112.5~\textup{minutes}.$

Therefore, after 45 minutes, the duration of the movie that was left is given by

$112.5-45=67.5~\textup{minutes}.$

Thus, 67.5 minutes of movie was left.

Answer 2

$1\frac{7}{8} -\frac{6}{8} =1\frac{1}{8}$ of the hour left