There are 53 students on a field trip. one chaperone is needed for every 6 students. how many chaperones are needed.

First you have to split up the 53 students into groups of  6 .

53/6  =  8  with reminder  5 .

There are 8 groups of 6 students, so we know immediately that we need at least 6 chaperones.

But what to do about the 5 students left over ?

We can either let them go unchaperoned, or else hire one more chaperone to keep an eye on that group even though there are less than 6 students in it.

I think the teachers and parents, and maybe even the students themselves, would all agree that the right thing to do is get one more chaperone for the 5 students.

So all together, they need 7 chaperones on the trip.

M< 5 = 80 , < 2 = 80, < 6= 100, < 3= 100, < 7= 80, < 4= 80, < 8= 100