We are given a pan of brownies
Let's assume number of pan brownies is x
If the Rodriguez family ate 1/3 of a pan of brownies
so, they ate
[tex]=\frac{1}{3} x[/tex]
So, the remaining pan of brownies
[tex]=x-\frac{1}{3} x[/tex]
[tex]=\frac{2}{3} x[/tex]
they plan to divide the remaining brownies into two equal parts
So, each will get
[tex]=\frac{1}{2}\times \frac{2}{3} x[/tex]
[tex]=\frac{1}{3} x[/tex]
So, each will get [tex]=\frac{1}{3}[/tex] of the whole pan of brownies.......Answer