Question 503540
1 1/2 = 1 + 1/2 = 2/2 + 1/2 = 3/2


So 1 1/2 = 3/2



Now divide 36 into 3/2 to get 



(36)/(3/2) = (36/1)/(3/2) = (36/1)*(2/3) = (36*2)/(1*3) = 72/3 = 24



So you can fit 24 books.