问题
解答题
先化简,再求比值
|
答案
(1)1
:0.85,3 4
=(
×20):(7 4
×20),17 20
=35:17;
1
:0.85,3 4
=35:17,
=35÷17,
=
;35 17
(2)2
:0.04,1 2
=(2.5×100):(0.04×100),
=250:4,
=125:2;
2
:0.04,1 2
=125:2,
=62.5.
先化简,再求比值
|
(1)1
:0.85,3 4
=(
×20):(7 4
×20),17 20
=35:17;
1
:0.85,3 4
=35:17,
=35÷17,
=
;35 17
(2)2
:0.04,1 2
=(2.5×100):(0.04×100),
=250:4,
=125:2;
2
:0.04,1 2
=125:2,
=62.5.