One eight corresponds to the rational number [tex]\frac{1}{8}=0.125[/tex].
In this problem, Alexander has 5 oranges. In order to calculate how many eights are contained in 5 oranges, we should divide the total number of oranges (5) by the value of each eighth (1/8), so we get:
[tex]N=\frac{5}{\frac{1}{8}}=8\5 = 40[/tex]
So, 5 oranges contain 40 eigths.
