人教版八年级数学上册分式的加减法练习题精选31Word格式文档下载.docx
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x+84
x7xx
x+1x+1x+1
7cd6c2d2
nn
5n+3(5n+3)2
x3
————-———
x2-y2x-y
———-a+7
a-8
x+y5y
x-y2x-y2
x+2qx-2q
a+45
aa
4aaa
———+———-———
a-5a-5a-5
41
4c2d22cd2
7yy
————-————
2y+1(2y+1)2
m6
m2-y2m+y
a
———+a+5
a-5
3x-y2y
y+by-b
y+59
2xxx
x+7x+7x+7
43
6cd28c2d2
7a5a
5a+9(5a+9)2
a4
a2-b2a+b
x
———+x-2
x-5
8x+y7x
21
x+qx-q
y-75
——+——
a3a4a
a-4a-4a-4
3cd3c2d2
4a+5(4a+5)2
n5
x2-n2x-n
m
———-m-5
m-4
9x-y2x
x3-y2x3-y2
32
3y+3q3y-3q
m+13
mm
nnn
n-6n-6n-6
9cd4c2d2
5y-5(5y-5)2
m1
m2-y2m-y
———+x+7
x-3
6x+2y9y
25
2y+2n2y-2n
b-14
y8y9y
y-2y-2y-2
8c2d3cd
2n8n
2n-7(2n-7)2
m2
———+x-3
8x+2y3x
x3-yx3-y
52
2y+b2y-b
b-86
4yy2y
———+———+———
y-6y-6y-6
2cd8cd
n6n
2n-2(2n-2)2
a3
a-4
9x-y9y
x3-y3x3-y3
14
x+bx-b
x-61
b6b2b
b-5b-5b-5
11
4cd5cd2
3nn
6n+8(6n+8)2
x4
x2-b2x-b
———+m-5
m-1
x+y3x
3y+2b3y-2b
a-14
x9xx
x-4x-4x-4
3c2d3cd
4bb
2b-8(2b-8)2
m4
m2-b2m+b
———-a-6
x-y8y
x+y2x+y2
3p+2a3p-2a
y+22
n9nn
n-7n-7n-7
6c2d8cd
8bb
3b-6(3b-6)2
m2-n2m+n
m2
———-m-3
m-2
x-2y4x
x2+y3x2+y3
m+bm-b
x-43
aaa
a-7a-7a-7
12
4cd9cd2
3n4n
3n-5(3n-5)2
x2
x2-y2x+y
———-x-8
x-2
x+9y6y
x3+y3x3+y3
55
3x+3b3x-3b
a-63
aa9a
a+1a+1a+1
22
8cd28c2d2
5y9y
4y-1(4y-1)2
a5
———-a+2
a-7
7x+y5x
2p+3n2p-3n
y-28
6xxx
x-7x-7x-7
34
4c2d26c2d2
6xx
2x-6(2x-6)2
x1
———+x+3
3x-y8x
3m+a3m-a
b+64
b9bb
b-2b-2b-2
4c2d22c2d2
3y6y
5y+8(5y+8)2
———-x-7
9x-y4y
p+np-n
x+41
5aaa
3c2d4cd2
6b+3(6b+3)2
———+a+6
a-2
x+y6x
x2+y2x2+y2
y+3by-3b
x+77
2aaa
2c2d28c2d2
2m3m
5m+7(5m+7)2
m3
m2-b2m-b
———+x+6
x-6
x-7y7y
x+yx+y
x+3nx-3n
m-97
a+5a+5a+5
7c2d29c2d2
a3a
5a-5(5a-5)2
———+m-6
m-5
x+y7x
x2-y2x2-y2
3x+3n3x-3n
x+68
3n6n7n
n-4n-4n-4
7c2d4cd2
6x-2(6x-2)2
———+a+1
a-6
x-8y9x
x2-yx2-y
p+3qp-3q
y-67
aa8a
6c2d7c2d
5nn
———+x-6
6x-8y2y
23
2m+q2m-q
y+35
5m4mm
m-4m-4m-4
7c2d27c2d2
a2a
2a-8(2a-8)2
———-x-5
x-1
x+y2y
3y+q3y-q
y-43
2nnn
n-8n-8n-8
3cd9cd
3aa
3a+3(3a+3)2
n1
———-a-4
a-1
x-y2x
33
2p+3a2p-3a
n+19
yyy
y-7y-7y-7
4c2d5cd2
n5n
5n+8(5n+8)2
b1
———-m-7
x+3qx-3q
m+22
mm7m
m-2m-2m-2
8cd22cd2
3mm
3m+2(3m+2)2
m5
m2-n2m-n
———-x+7
p+bp-b
y-98
y4yy
y+4y+4y+4
4c2d24c2d2
2x-4(2x-4)2
b3
x2-b2x+b
———-x-4
x-8
x-9y7y
x-11
3nn2n
n-2n-2n-2
7c2d2c2d
2x4x
3x-5(3x-5)2
x2-n2x+n
———-a-8
2x-8y4y
b-33
b+5b+5b+5
7cd23c2d2
y9y
5y-7(5y-7)2
———+m+4
m-3
2x-y9x
53
3m+b3m-b
b+45
a+7a+7a+7
9c2d28cd
6n-5(6n-5)2
a1
3x+4y6y
51
3m+3b3m-3b
n+59
4m9m8m
m+8m+8m+8
7c2d6c2d2
2n6n
4n+5(4n+5)2
b6
———-m+8
m-6
2x-8y6y
b-59
y3y8y
y+9y+9y+9
3c2d4cd
8mm
2m+5(2m+5)2
———+a-1
a-9
2x+3y6y
x2+yx2+y
m+2am-2a
y+43
b2b6b
7c2d7cd2
3a+7(3a+7)2
b2
———-a-7
2x-2y3y
54
2m+2a2m-2a
y+89
3yy2y
6c2d6cd2
5bb
a2-b2a-b
———-x+2
x+y5x
24
m+3nm-3n
a+64
n+3n+3n+3
b5b
6b+5(6b+5)2
———+x+9
4x+4y3y
m+95
4m5m9m
m+1m+1m+1
5cd25c2d2
5b-6(5b-6)2
a2
a2-n2a+n
———-a+8
x-7y6y
x+82
3n5nn
7c2d28cd2
3n-4(3n-4)2
b4
———-m-2
x+8y3y
3p+n3p-n
n+72
x4xx
4cd6cd
6y+9(6y+9)2
———-x+5
x-4
2x+y3x
15
m+46
y3y2y
4c2d22cd
2n-4(2n-4)2
———+a-8
x-y3y
2x+n2x-n
b-78
m5mm
m-5m-5m-5
6cd8c2d2
6a+5(6a+5)2
x5
———+m-2
4x+3y9x
3y+3n3y-3n
y+92
9yy7y
y+3y+3y+3
9c2d4c2d
8n3n
2n-9(2n-9)2
———-a-5