Question

x/4-4/x

over
1-4/x

simplify this

Answer 1

use brackets please

(x/4 - 4/x) / (1 - 4/x)

= (x/4 - 4/x) / (1 - 4/x) * (4x)/(4x) , actually multiply by 1
=(x^2 - 16)/(4x-16)
= (x+4)(x-4)/(4(x-4))
= (x+4)/4 , x ≠ 4