(1/4x7/8)x16
(1/4x7/8)x16 ........ this can be re-ordered as :
(1/4) x 16 x 7/8 =
4 x 7/8 =
28/8 = 7/2
1/4 would be need to be changed to 2/8 x 7/8 cross multiplying = 8x2 = 16/8 = 2x16 = 32