If you cross one fly that is heterozygous for both traits with a fly that is heterozygous for red eyes?

The question asks for cross between, "heterozygous for both traits with a fly that is heterozygous for red eyes and homozygous for tan bodies" which means -
RrBb x Rrbb

Now gamates from the first parent will be RB, rB, Rb and rb.
Gamates from second parent will be Rb and rb.

Now making a crossing square.
So, the cross will result in 8 progenies namely.
RRBb, RrBb, RRbb, Rrbb, RrBb, rrBb, Rrbb, and rrbb.

What fraction of the offspring will have red eyes and brown bodies?
> There are 3 offsprings with red eyes and brown bodies, so fraction = 3/8

What fraction of the offspring will have maroon eyes and brown bodies?
> There is one progeny with maroon eyes and brown bodies, so fraction = 1/8

What fraction of the offspring will have red eyes and tan bodies?
> There are 3 progenies with red eyes and tan bodies, so fraction = 3/8

What fraction of the offspring will have maroon eyes and tan bodies?
> There is only one progeny with maroon eyes and tan bodies (rrbb), so fraction = 1/8