Question 1125545
The cube is a unit cube, with a side of 1 and a surface area of 6. (Right? Each side is 1x1 times 6 sides.)

The sphere, has a surface area of 4 pi r^2.   The radius is 1/2 unit so 
4 x pi x 1/4 or just pi. 

sphere to cube is pi/6 

or

3.14159/6 = .5236  just over 52% the surface area.