To answer this we will divide, and then round the number to the nearest whole because it will be a never ending number. Lets do it:-
112 ÷ 6 = 18.6666....
Lets round:-
18.66666.. = 19
So, Jerod will need 19 pages so that each page will hold 6 photos but the last page will only have 4 photos.
Hope I helped ya!!