问题 解答题
化简比
14:210.75:
1
8
0.48:0.12
7
9
3
2
答案

(1)14:21,

=(14÷7):(21÷7),

=2:3;

(2)0.75:

1
8

=0.75:0.125,

=(0.75÷0.125):(0.125÷0.125),

=6:1;

(3)0.48:0.12,

=(0.48÷0.12):(0.12÷0.12),

=4:1;

(4)

7
9
3
2

=(

7
9
×18):(
3
2
×18
),

=14:27.

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