Matematika A - 2021. ljeto, 3.

$\frac{31}{8}-K\backslash frac\{31\}\{8\}-K$

$\frac{31}{8}+K\backslash frac\{31\}\{8\}+K$

$\frac{31-K}{8}\backslash frac\{31-K\}\{8\}$

$\frac{31+K}{8}\backslash frac\{31+K\}\{8\}$