Question

Last week 40 fifth graders went on a field trip to the science museum.

Answer 1

PART ONE:
To put this information into a fraction you write part over whole:
 $8/40$

To change this into a decimal you have to plug in 8÷40 into your calculator:
0.2

PART TWO:
After you subtract 8 from 40, there are 32 fifth graders left.
The fraction will look like this:
$32/40$

To change this into a decimal you have to plug in 32÷40 into your calculator:
0.8

I hope this was helpful!