Ok, so
Remember that the probability of an event is the relation between the favorable cases and all the possible cases.
In this case, we want to know the probability of landing on spaces 2 through 5.
We know that all the possible options for the spinner to land, are 10.
We also know that there's four positions between 2 and 5. (2,3,4,5).
Now, the probability will be:
Probability = 4/10 which is 2/5