Answer: 
Step-by-step explanation:
You can reduce the fractions, then:



Rewrite them as following:

If you subtract the first number and the second number, you obtain:

If you subtract the second number and the second number, you obtain:

Therefore, you must subtract
and
to obtain the number asked. Then, this is:

X / 8 = 3.75
X = 3.75 * 8
X = 30
There were 200 students that attend the dance.
898316287940
hope this helps, back to my hole i go