若2x-5y=0,则y:x=_,x+y/x=_.

问题描述:

若2x-5y=0,则y:x=______,

x+y
x
=______.

∵2x-5y=0
∴2x=5y
∴y:x=2:5

x+y
x
=1+
y
x
=1+
2
5
=
7
5