A solid 6-by-6-by-6 cube is constructed from unit cubes and the entire outer surface is painted. What fraction of the unit cubes has zero painted faces? Express your answer as a common fraction.
+2666 Note that only the inside 4 x 4 x 4 cube will not be painted.
Can you take it from here?
+2666 Note that only the inside 4 x 4 x 4 cube will not be painted.
Can you take it from here?
