人教版八年级数学上册分式的加减法练习题精选60Word文档格式.docx
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x-2
7x-4y9x
x+y2x+y2
11
2m+3n2m-3n
n+12
n7nn
———-———+———
n-2n-2n-2
44
6c2d24cd
4x-4(4x-4)2
a3
a2-b2a-b
———-x-5
x-5
3x+5y5y
x3+y2x3+y2
13
3y+n3y-n
b-98
m8mm
m-2m-2m-2
9c2d28cd2
4mm
6m-2(6m-2)2
b6
x2-b2x+b
———-x-2
x-7
9x-8y4y
x+yx+y
3p+3b3p-3b
m+86
mm
6bbb
b+2b+2b+2
43
4cd6cd
4n-3(4n-3)2
x2
x2-y2x+y
m
———+m-2
m-1
x-8y8y
x2+y3x2+y3
42
y+ny-n
a-75
aa
6y8y8y
y+4y+4y+4
3cd6cd
8n9n
4n+3(4n+3)2
x2-y2x-y
m2
———+m+3
m-3
x+2y2x
35
2x+q2x-q
n-54
9n8nn
n+3n+3n+3
6cd22cd
n6n
2n-7(2n-7)2
m6
m2-n2m+n
———+a-9
a-7
x+y9x
x2-yx2-y
3m+q3m-q
n+91
6bb8b
b+1b+1b+1
5cd24c2d
9x9x
4x-3(4x-3)2
b5
x2
———+x+2
x-7y5x
x2-y3x2-y3
x+3qx-3q
x-63
xx
bb5b
b-3b-3b-3
12
4c2d29cd
2mm
6m+5(6m+5)2
———-x-9
x-4
x-2y7y
21
2m+2a2m-2a
y-68
x6xx
x-7x-7x-7
7cd8cd2
b6b
3b-1(3b-1)2
a2
a2-n2a+n
———-a-1
x+3y8y
x3-yx3-y
3m+n3m-n
y-41
yyy
———+———-———
y-9y-9y-9
31
9cd26cd2
6n+3(6n+3)2
y2
m2-y2m+y
———+m+9
m-4
6x+y6x
3p+n3p-n
y-61
5bbb
b+4b+4b+4
6c2d24c2d2
2n-2(2n-2)2
n4
m2-n2m-n
———+a+4
a-5
x+6y2x
x3+y3x3+y3
14
2x+2a2x-2a
n-21
m6m9m
m+8m+8m+8
8cd25c2d
7bb
4b-6(4b-6)2
———-a+3
a-2
9x+4y5x
a-16
xx7x
x-2x-2x-2
24
7c2d3c2d
6xx
2x-8(2x-8)2
———-x-8
x+y7x
x+y3x+y3
y+by-b
y+15
2m8mm
m-3m-3m-3
41
9cd3c2d
2x+7(2x+7)2
y5
———+x+1
x-3
4x+y3y
15
x+bx-b
y+58
7bbb
b+7b+7b+7
9cd7c2d
6y+9(6y+9)2
———-m+2
2x-9y7x
2y+b2y-b
a-19
m4m4m
m+5m+5m+5
2cd8cd
7y8y
2y-4(2y-4)2
b2
x2-b2x-b
x+9y7x
2x+3n2x-3n
n-84
b7b8b
b-7b-7b-7
8cd25cd
7yy
3y-4(3y-4)2
m2
m2-b2m+b
———+a+1
a-4
x-y5x
x3-y3x3-y3
p+np-n
m+32
xxx
x+3x+3x+3
2c2d23cd
6n-3(6n-3)2
m5
———-m-6
x+y6y
x2+yx2+y
3p+2a3p-2a
n+66
8y3yy
y-3y-3y-3
2c2d8cd
x8x
3x+3(3x+3)2
a-1
x-y3x
54
2y+q2y-q
b+67
9x2xx
x+1x+1x+1
8cd4c2d2
4b+5(4b+5)2
y3
x+y2y
x+3ax-3a
a+59
2m3m3m
8c2d5cd
3x5x
6x+3(6x+3)2
a2-n2a-n
———+x+6
x-8y6y
x2-y2x2-y2
p+3bp-3b
a+16
nnn
n-4n-4n-4
3c2d24c2d
n5n
6n+8(6n+8)2
a2-b2a+b
a2
———-a+6
a-8
7x+y7x
x-y2x-y2
2x+a2x-a
y+22
m2mm
8cd25c2d2
3a+3(3a+3)2
———+x+3
4x+y6y
y+2ay-2a
b-41
6bb4b
3cd8c2d
n8n
6n-1(6n-1)2
b4
———-x-6
x-y5y
x3-y2x3-y2
3p+3q3p-3q
n-87
8bb2b
b-9b-9b-9
34
8c2d8c2d2
x9x
———+a+8
2x-8y6y
2m+3a2m-3a
n+36
bb9b
6cd7cd2
7m2m
3m+2(3m+2)2
n5
———-m+7
m-9
8x+y7y
y+3ay-3a
x+76
aa8a
a-7a-7a-7
9cd25cd2
m8m
3m+3(3m+3)2
x6
———-x+9
x+3y4x
p+bp-b
n-67
8nnn
9c2d22c2d
2a-8(2a-8)2
n1
x2-n2x-n
———-a-8
x+y9y
x-8x-8x-8
2cd5c2d
m2m
5m-2(5m-2)2
———-a+4
6x+y5y
a+77
4b6b2b
b-8b-8b-8
3c2d29cd
y6y
5y+5(5y+5)2
x3
———+m-6
3x+5y6x
2y+3a2y-3a
b+34
b9b8b
b+5b+5b+5
3cd4cd2
2x-4(2x-4)2
m4
———+a-5
x+y4x
3y+2a3y-2a
x-61
9aa8a
a-1a-1a-1
7c2d22c2d
m5m
6m-5(6m-5)2
6x-3y3x
25
2x+2q2x-2q
a-41
m8m3m
m-4m-4m-4
2cd23cd2
4b+1(4b+1)2
5x+8y9x
32
x+2qx-2q
m-52
3yy6y
6cd5cd2
———-x-3
x-6
6x+y4x
53
y+3ny-3n
n-95
y-8y-8y-8
3cd29c2d2
9a3a
6a-5(6a-5)2
———+a-8
7x-y4y
x+qx-q
x-11
xx6x
x+7x+7x+7
9cd9cd
2n+5(2n+5)2
n6
———-x+2
x-y3y
45
x+nx-n
y+92
3mmm
m+3m+3m+3
8c2d6cd
5nn
m2-b2m-b
———+x-6
x-9
6x+8y7y
x3+yx3+y
3x+b3x-b
x+22
bbb
b+9b+9b+9
5a-3(5a-3)2
———-x-1
y+3by-3b
x-83
a4aa
a+6a+6a+6
4cd23c2d2
6a+4(6a+4)2
———-m+9
m-6