Question

Mariko's social studies class lasts 5/6 of an hour.Only 3/12 of an hour has passed.What fraction of an hour remains for Mariko's social studies class?
Help meh pls ;-;​

Answer 1

Answer:

$\frac{7}{12}$  of an hour is remaining for Mariko's social studies class

Step-by-step explanation:

Given:

Total duration of Mariko's social studies class = 5/6 of an hour.

Only 3/12 of an hour has passed.

To Find:

Fraction of an hour remains for Mariko's social studies class =?

Solution:

Converting into minutes

5/6 of an hour =  $\frac{5}{6} \times (60)$

=>$\frac{300}{6}$

=>50 minutes

So the total duration of  Mariko's social studies = 50 minutes

If  3/12 of an hour passes means

Converting into  minutes

=>$\frac{3}{12} \times 60$

=>$\frac{180}{12}$

=>$\frac{180}{12}$

=> 15 minutes

15 minutes has passed

Remaining time left is

50 minutes - 15 minutes = 35 minutes left

Now converting into 35 minutes into hours we get

=> $\frac{35}{60}$

=>$\frac{7}{12}$