What is fraction of a day is 8 hour ?

1 Answer
Mar 28, 2018

The fraction is obvoiusly one third. The real problem here is how you handle units, which you'll need to do in science and engineering calculations. Read on!

Explanation:

This is a problem that tests tour ability to carry units through your calculations.

Here you start with

#8color(red)("hr")#

Now you multiply this by a fraction that matches hours to days:

#8color(red)("hr")×{1color(blue)("d")}/{24color(red)("hr")}#

And note that the hour units, given in red, cancel out. So when you do the mathematical operation of multiplication you also convert the units to what you want:

#8color(red)(cancel("hr"))×{1color(blue)("d")}/{24color(red)(cancel("hr"))}=(1/3)color(blue)("d")#