Answer:
The fraction of students in Zoe's class who have rodents is
.
Explanation:
In Zoe's class, 4 /5 of the students have pets.
Of the students who have pets, 1/8 have rodents.
This means
have rodents.
So,fraction of students who have rodents =

=
The fraction of students in Zoe's class who have rodents is
.