若ab=cd=ef=34,则a−2c+3eb−2d+3f=______.

问题描述:

a
b
=
c
d
=
e
f
=
3
4
,则
a−2c+3e
b−2d+3f
=______.

a
b
=
c
d
=
e
f
=
3
4

a−2c+3e
b−2d+3f
=
3
4

故答案为:
3
4

答案解析:根据等比性质求解即可.
考试点:比例的性质.
知识点:本题考查了比例的性质,熟记等比性质是解题的关键.