问题 解答题
解方程
(1)0.8:x=
4
3
:0.2
(2)(
1
4
x+0.33)÷
1
5
=0.134.
答案

(1)0.8:x=

4
3
:0.2,

4
3
x=0.8×0.2,

4
3
x÷
4
3
=0.16÷
4
3

x=0.12;

(2)(

1
4
x+0.33)÷
1
5
=0.134,

1
4
x+0.33)÷
1
5
×
1
5
=0.134×
1
5

1
4
x+0.33-0.33=0.0268+0.33,

1
4
x÷
1
4
=0.3568÷
1
4

x=1.4272.

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