Question

Carl reads for an average of 1hr25min each night. How many hours does he read in 4 weeks? Enter a mixed number.

Answer 1

Answer:

39 2/3

Step-by-step explanation:

First we will write 1 hour and 25 minutes as a mixed number.  Since there are 60 minutes in an hour, this gives us

1 25/60

We can simplify this fraction, since both the numerator and denominator are divisible by 5:

1 (25÷5)/(60÷5) = 1 5/12

This is the fraction of hours he reads per nights.  There are 7 nights in a week:

(1 5/12)(7) = 17/12(7/1) = 119/12

He reads for 4 weeks:

119/12(4/1) = 476/12

12 will go into 476 39 times, with 8 left over:

39 8/12

Both 8 and 12 are divisible by 4:

39 (8÷4)/(12÷4) = 39 2/3