What might a model for 3 times 3/5 look like? how many fifths would be shaded in all?

It's a bit hard to do a model on here, but I'll try to represent it. Note that the "a"s are the shaded parts and the "b"s are the non-shaded parts.

a  a  a
a  a  a
a  a  a
b  b  b
b  b  b

There are 9/15 shaded.