Question

28/z- z/4+1 1/8 when z =4

Answer 1

7 1/8 or 7.125

Explanation:

first subsitute z for 4

28/4 - 4/4 + 1 1/8

then do 28/4 - 4/4 which is 6,

add that to 1 1/8

and get 7 1/8

Answer 2

Explanation:

`(28)/(z)-(z)/(4)+1(1)/(8)=(28)/(4)-(4)/(4)+(9)/(8)\\\\=7-1+(9)/(8)\\\\=6+(9)/(8)\\\\=(6*8)/(1*8)+(9)/(8)\\\\=(48)/(8)+(9)/(8)\\\\=(57)/(8)\\\\=7(1)/(8)`