问题 解答题
化简下面各比,并求出比值.
25:100
12
5
8
15
0.9:0.36
1
4
吨:375千克
最简整数比________________________
比值________________________
答案

(1)25:100,

=(25÷25):(100÷25),

=1:4;

25:100,

=25÷100,

=0.25,

(2)

12
5
8
15

=(

12
5
×
15
4
):(
8
15
×
15
4
),

=9:2,

12
5
8
15

=

12
5
÷
8
15

=

9
2

(3)0.9:0.36,

=(0.9×100):(0.36×100),

=90:36,

=(90÷18):(36÷18),

=5:2,

0.9:0.36,

=0.9÷0.36,

=2.5;

(4)

1
4
吨:375千克,

=250千克:375千克,

=250:375,

=(250÷125):(375÷125),

=2:3,

1
4
吨:375千克,

=250千克:375千克,

=250:375,

=250÷375,

=

2
3

25:100
12
5
8
15
0.9:0.36
1
4
吨:375千克
最简整数比1:49:25:22:3
比值0.25
9
2
2.5
2
3

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