试题:
解比例
2.5
x
=
5
12

x:
3
4
=
1
6
3
16

3.6:x=0.2:2.4.

答案:

我来补答
(1)
2.5
x
=
5
12

5x=2.5×12
5x=30
x=6

(2)x:
3
4
=
1
6
3
16

3
16
x=
3
4
×
1
6

3
16
x=
1
8

x=
2
3


(3)3.6:x=0.2:2.4
0.2x=3.6×2.4
0.2x=8.64
x=43.2
 
 
展开全文阅读
剩余:2000
这些题目你会做吗?