解方程(分数加减乘除法)
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解方程分数加减法
2 3x + 1
5
x =26 x + 3
8
x =5
6
7 5x + x =4
5
4
5
x + 2
3
x =11
5
x + 3
20x = 46 1
2
x + 1
3
x =20
3 8+ x =7
6
4
5
x + 6=26
3 10×2 + 1
3
x =7
5
x + 2
5
x =14
15
X - 7
9
x = 2 2 x - 7
6
x =1
3
5 9x - 5 =10X - 3
11
= 2
33
11X -
3
20
= 19
20
26
16
X -
1
3
= 3
4
(5 8 −3
4
) x = 9 ( 7
9
−1
6
) x = 22
17
1 2X -
1
4
= 2
5
11X - 3
20
= 19
20
5X - 5
6
= 5
12
X -
2
7
X =
1
14
3 4X -
1
2
X =
5
16
5
8
X -
3
10
X =
3
20
3 2- X = 1
4
14
15
- X = 1
5
11 12- X = 3
16
15
16
- X = 5
24
17 24- X = 3
8
17
24
- X = 1
3
分数乘法
2 7X =
8
21
8X =
2
3
2
9
X =
46
27
5 18X =
25
54
7
8
X =
21
40
5
8
X =15
2 5X =
18
25
7
15
X =
2
5
3
4
X =
5
6
6X = 3
4
÷1
2
1
4
X =
1
40
×1
2
5
9
X = 5
2 5X = 1
4
8X =
2
3
3
5
X = 20×
1
4
分数除法
X ÷2
3= 5
6
X ÷8
9
= 8
9
X ÷8
9
= 3
4
X ÷2
9= 6
7
1
3
X ÷4
9
=8X ÷1
6
= 3
4
X ÷5
17= 15
34
X ÷4
5
= 15
28
X ÷7
5
−1
5
= 4
5
2 3X ÷1
4
=12X ÷1
8
=15× 2
3
X ÷ 3
4
=8
7 18 ÷X = 14
27
6
5
÷X = 18
5
5
8
÷5X = 3
16
28.2 ÷X = 120125 ÷X = 310