So there are 8 students, therefore each student gets 1/8 of the cake.
Since only 3/4 of a cake is available, they will each get 1/8 of 3/4.
We can find this by multiplying 1/8 and 3/4.
To get the answer, we multiply the numerators together and the denominators together which gives us:
(1*3)/(8*4) = 3 / 32 = 0.09375
So each student only get 3 / 32 of the cake.