问题 解答题
化简比.
16:20
2:
4
3
0.24:4
81
100
9
200
0.9:0.03
2
3
1
2
答案

16:20,

=(16÷4):(20÷4),

=4:5;

2:

4
3

=(2×3):(

4
3
×3),

=6:4;

=(6÷2):(4÷2),

=3:2;

0.24:4,

=(0.24×100):(4×100),

=24:400,

=(24÷8):(400÷8),

=3:50;

81
100
9
200

=(

81
100
×200):(
9
200
×200),

=162:9,

=(162÷9):(9÷9),

=18:1;

0.9:0.03,

=(0.9×100):(0.03×100),

=90:3,

=(90÷3):(3÷3),

=30:1;

2
3
1
2

=(

2
3
×6):(
1
2
×6),

=4:3.

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