Convert 2 1/2 into an improper fraction, that should be 5/2.
Now converg 1 5/8 into an improper fraction and and its 13/8
Then set up the divsion problem and flip 13/8 into 8/13 and cross reduce to give you 5/1 times 13/4 qnd multiply qnd then tuen it back into a mixed number and the anwser is 1 17/13