题目内容

求比值:
①35:45
②360:450③0.3:0.15
④18:
2
3
⑤6:0.36⑥
3
20
:
4
5
⑦0.6:
2
5
⑧
2
3
:6.
①35:45
=35÷45
=
7
9
;

②360:450
=360÷450
=
4
5
;

③0.3:0.15
=0.3÷0.15
=2;

④18:
2
3

=18÷
2
3

=27;

⑤6:0.36
=6÷0.36
=
50
3
;

⑥
3
20
:
4
5

=
3
20
÷
4
5

=
3
16
;

⑦0.6:
2
5

=0.6÷
2
5

=
3
2
;

⑧
2
3
:6
=
2
3
÷6
=
1
9
.
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