Posted by Alex L. on .
I can't quite solve this question.
Of 98 bicycles in a bike rack, 67 are mountain bikes. What fraction of the bicycles are not mountain bikes?

Math  Division 
Ms. Sue,
98  67 = 31
31/98 are not mountain bikes. 
Math  Division 
Alice,
9867=31 so, 31/91 are mountian bikes
in english that means this:
you have 97 bikes
67 are mountain bikes,yes?
you want to figure out how many are not mountain bikes, right?
you simply subtract 67(# of moutain bikes) from 98(total # of bikes)...
that will tellyou how many bikes are left
the number of bikes left are mountain bikes 
Math  Division 
Alice,
The 'are' at the beginning and end of that were supposed to be aren't.