题目内容

x
25
=
1.2
75
25:x=
1
4
:4
1
8
:
1
10
=
1
4
:x
4:
2
3
=
x
25
2
3
:
1
6
=x:12
13:7=
3
5
:
x
14
(1)
x
25
=
1.2
75
,
75x=1.2×25,
75x÷75=30÷75,
x=0.4,

(2)25:x=
1
4
:4,
1
4
x=25×4,
1
4
x×4=25×4×4,
x=400,

(3)
1
8
:
1
10
=
1
4
:x,
1
8
x=
1
10
×
1
4
,
1
8
x×8=
1
40
×8,
x=
1
5
,

(4)4:
2
3
=
x
25
,
4:
2
3
=x:25,
2
3
x=25×4,
2
3
x×
3
2
=100×
3
2
,
x=150,

(5)
2
3
:
1
6
=x:12,
1
6
x=12×
2
3
,
1
6
x×6=8×6,
x=48,

(6)13:7=
3
5
:
x
14
,
13×
x
14
=7×
3
5
,
13
14
x×
14
13
=
21
5
×
14
13
,
x=
294
65
.
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