人教版八年级数学上册分式的加减法练习题精选22文档格式.docx
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x3+y2x3+y2
31
2x+2a2x-2a
x+37
——-——
xx
b5bb
———+———-———
b+8b+8b+8
13
8c2d8c2d
n4n
————+————
4n+7(4n+7)2
x4
x2-b2x+b
x2
———+x+7
x-9
7x-y8x
x3-y3x3-y3
24
2x+3q2x-3q
y+14
yy
m2m3m
m+7m+7m+7
44
6c2d26cd2
b7b
3b-3(3b-3)2
x3
x2-n2x-n
m
———+m-9
m-2
x-5y4y
25
x+2bx-2b
b+59
bb
x6x4x
x-6x-6x-6
32
8c2d29cd
3b+2(3b+2)2
m2
———-m-9
m-3
4x+y7y
x3-yx3-y
22
3y+b3y-b
x-83
nnn
———+———+———
n+9n+9n+9
6cd8c2d
3x+1(3x+1)2
b3
a2-b2a-b
a
———-a-7
a-1
x-y6y
x3-y2x3-y2
y+3qy-3q
n-25
nn
6aa4a
a+7a+7a+7
11
4c2d23cd
2a9a
4a+3(4a+3)2
m2-n2m-n
———+m-7
x-2y4x
x2-y3x2-y3
52
p+2bp-2b
a+96
n3n2n
n+4n+4n+4
9cd2c2d2
4xx
5x-9(5x-9)2
y5
a2-y2a+y
———-m+3
m-1
x+8y8x
43
3m+2a3m-2a
a-84
x4xx
x+5x+5x+5
7cd25c2d2
3mm
4m+7(4m+7)2
b6
x2-b2x-b
———-a+8
a-6
9x-9y4y
p+np-n
a+74
5b2bb
7c2d26c2d
b8b
5b+1(5b+1)2
m3
m2-n2m+n
———+m+3
x-3y8y
x-y3x-y3
3p+n3p-n
x+83
8aa7a
a-2a-2a-2
14
5c2d24c2d
3y6y
3y-7(3y-7)2
b5
———-x-5
x-6
x+5y7x
x-y2x-y2
2x+2q2x-2q
x+79
x3xx
x-1x-1x-1
9cd3cd2
n8n
6n+1(6n+1)2
b1
m2-b2m+b
———-m+9
m-9
2m+3a2m-3a
n-87
5aa8a
a-4a-4a-4
21
3cd25c2d
9mm
5m+2(5m+2)2
x2-n2x+n
———-m+5
m-7
2x-5y9y
m+nm-n
m+93
mm8m
m-3m-3m-3
6c2d8c2d2
2mm
5m+1(5m+1)2
———+a+8
x+6y2y
y+2qy-2q
m+31
8yy9y
y+3y+3y+3
4c2d22cd2
m3m
5m-3(5m-3)2
n3
a2-n2a-n
———+a+9
x3+y3x3+y3
15
3x+3n3x-3n
b+23
aa2a
8cd9c2d2
3n8n
5n+4(5n+4)2
m1
———-a-6
a-7
x-8y6x
y+2ay-2a
b+94
2a8a6a
a-9a-9a-9
x8x
4x+7(4x+7)2
m2-b2m-b
———+m+2
x-y4x
x2+yx2+y
y+qy-q
y-34
7aa2a
a+3a+3a+3
8c2d26cd2
3m+6(3m+6)2
n6
a2-n2a+n
———-a-2
a-2
x+y9y
x2+y2x2+y2
51
m+bm-b
m+77
a3a5a
a+6a+6a+6
8c2d22c2d2
9yy
5y+3(5y+3)2
y4
x-4
x+y7y
m+2bm-2b
x-44
b9bb
b-4b-4b-4
34
5c2d29c2d2
x2x
5x+3(5x+3)2
y1
a2-y2a-y
a-3
x+5y9y
45
p+2qp-2q
n-88
3m7mm
m-4m-4m-4
6cd5c2d
4b-7(4b-7)2
b2
———+a+6
a-4
4x-9y4x
55
p+qp-q
x+92
4x7x4x
x+4x+4x+4
5cd6c2d
y9y
3y-9(3y-9)2
———+a+7
x+y3y
m+3bm-3b
x+51
5yy8y
y+5y+5y+5
9cd8c2d2
2a6a
5a-2(5a-2)2
m5
———+a+4
6x+y9y
33
2m+3q2m-3q
m-75
mmm
9cd22c2d2
7x4x
2x-3(2x-3)2
———+x-6
x+2nx-2n
4b4b3b
b+6b+6b+6
6c2d27c2d
5b-8(5b-8)2
a2
———-x-2
2p+3a2p-3a
x+67
8x8x5x
x+6x+6x+6
5c2d25cd
a3a
3a+6(3a+6)2
———-m-4
6x+3y2y
2y+a2y-a
m-72
3xx4x
x+7x+7x+7
9c2d4cd2
6m-7(6m-7)2
———+a+1
x+7y4x
2y+3b2y-3b
m-62
2m2m6m
41
7c2d9c2d2
b4
———-m-1
m-4
3x-y4y
2p+n2p-n
n+54
9yyy
y+4y+4y+4
6cd24c2d
5x2x
2x-8(2x-8)2
x2-y2x-y
x-7y5y
53
3m+q3m-q
n+22
yyy
y-2y-2y-2
4cd29cd2
8xx
3x-4(3x-4)2
———-a+2
2x+2y4y
m+45
xx9x
2cd24cd2
8n2n
3n-5(3n-5)2
———+a-7
x+y6y
3m+n3m-n
m-51
4x2xx
8cd28c2d
7a2a
2a+6(2a+6)2
x6
———-a-9
4x-8y9y
n+85
m6mm
m+5m+5m+5
8c2d4cd2
5n2n
6n-7(6n-7)2
———-a-8
x+3y8x
x2-y2x2-y2
p+ap-a
n+79
9m6mm
m+8m+8m+8
6cd24cd2
9nn
4n-3(4n-3)2
9x+6y2y
x+3ax-3a
b+75
3b5b7b
b+7b+7b+7
6cd3cd
2n+6(2n+6)2
y6
x2-y2x+y
———-m+4
m-8
7x-y9x
y+87
6nn9n
n-3n-3n-3
7cd23cd2
2yy
4y-5(4y-5)2
m-5
x-y4y
n-29
5x4xx
x+8x+8x+8
5mm
4m-9(4m-9)2
m-6
x+y2x
3p+a3p-a
x-21
5x8xx
8c2d23c2d
2x+6(2x+6)2
n2
7x-6y2x
m+3qm-3q
m+97
yy8y
y+8y+8y+8
4cd3c2d2
6a9a
4a-2(4a-2)2
y2
———-x-6
x-9y4x
x2-yx2-y
m+am-a
m+41
4y9yy
y-4y-4y-4
6c2d8c2d
n3n
———+m+8