题目内容

先化简比,再求比值.
3
4
:125%0.6:
3
4
10分:
2
5
时.
(1)
3
4
:125%,
=
3
4
5
4

=(
3
4
×4):(
5
4
×4),
=3:5;
3
4
:125%,
=
3
4
÷
5
4

=
3
4
×
4
5

=
3
5


(2)0.6:
3
4

=
3
5
3
4

=(
3
5
×
20
3
):(
3
4
×
20
3
),
=4:5;
0.6:
3
4

=0.6÷
3
4

=0.6×
4
3

=0.8;

(3)10分:
2
5
时,
=10分:24分,
=10:24,
=(10÷2):(24÷2),
=5:12;
10分:
2
5
时,
=10分:24分,
=10÷24,
=
5
12
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