Daca x/y=2/3 sa se calculeze 7x /7x+y =

Răspuns :


[tex]\dfrac{x}{y}=\dfrac{2}{3}[/tex]

x=2k
y=3k

[tex]\dfrac{7\cdot 2k}{7\cdot 2k+3k}=\dfrac{14k}{17k}=>\dfrac{14}{17}[/tex]
x/y= 2/3
x= 2k
y= 3k

7•2k/7•2k+3k= 14k/17k=> 14/17
cororana?