Răspuns :

[tex]\frac{x}{12} =\frac{36}{48} \\\\x=\frac{12*36}{48} \\\\x=\frac{432}{48} \\\\x=9[/tex]

[tex]\frac{12}{x} = \frac{59}{48} \\\\x= \frac{12*48}{59} \\\\x= \frac{576}{59} \\[/tex]

Sper că te-am ajutat! :)