人教版八年级数学上册分式的加减法练习题精选18Word文档下载推荐.docx
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6y3y5y
———-———+———
y+9y+9y+9
34
7cd6cd2
9nn
2n+8(2n+8)2
m2
————-———
m2-b2m-b
m
———+m+4
m-5
x+y8y
x3+yx3+y
3m+b3m-b
n-23
nn
4y5yy
———-———-———
y-6y-6y-6
42
6cd29cd
4yy
5y+3(5y+3)2
n6
x2-n2x-n
m-9
7x-y8y
x+yx+y
13
y+2ay-2a
n-28
4x7xx
x+6x+6x+6
2c2d26cd
n5n
————-————
5n+9(5n+9)2
x5
x2-b2x+b
a2
———-a+1
a-8
x+6y9y
p+3ap-3a
n-52
9bb4b
b-1b-1b-1
6c2d4c2d
5n+5(5n+5)2
a6
a2-y2a+y
x2
———-x+3
x-2
x-2y9y
x+y2x+y2
44
b-85
6y7yy
y+6y+6y+6
3c2d23c2d2
mm
4m+3(4m+3)2
x4
x2-n2x+n
———-m-8
m-1
x+7y7y
x-y2x-y2
3y+2q3y-2q
a-73
aa
9yy6y
y-1y-1y-1
23
2c2d7cd2
2xx
6x-6(6x-6)2
———+x+5
x-7
9x+y3y
x2+yx2+y
3x+2b3x-2b
b-72
4y3yy
y+3y+3y+3
3cd25cd2
9y5y
2y+2(2y+2)2
x6
x2-y2x+y
a
———-a-1
a-9
3x+3y5x
x+nx-n
m+55
8mmm
m-3m-3m-3
43
9c2d23c2d
9aa
6a-2(6a-2)2
y2
x
3x-6y5x
x3-y3x3-y3
x+2qx-2q
2nnn
n-4n-4n-4
2cd4c2d2
5n-8(5n-8)2
m3
m2-y2m+y
———+a-2
a-6
x-y2y
45
3x+b3x-b
y+16
yy
mm9m
m+8m+8m+8
4c2d28c2d
a4a
3a+4(3a+4)2
m1
m2-y2m-y
———-m+7
m-8
4x-y7y
x3-yx3-y
33
3y+n3y-n
a+97
a7aa
a+9a+9a+9
22
2cd8cd
y6y
5y-3(5y-3)2
y4
———+m-5
6x+6y3x
x3+y2x3+y2
x+97
nnn
n-6n-6n-6
9c2d9cd2
5a-3(5a-3)2
———+m-9
x-5y6y
x2+y3x2+y3
31
y+2ny-2n
n-13
3n8n4n
n+1n+1n+1
7c2d23c2d2
5x-7(5x-7)2
m4
m2-n2m-n
———+m+6
2x+y5x
2x+3b2x-3b
y+72
9n4n6n
5c2d27cd2
6n8n
4n-6(4n-6)2
n5
x-5
9x+8y9y
11
3y+3n3y-3n
n+56
y3yy
3c2d6cd
2b+9(2b+9)2
———-m-3
2x-y9y
3m+2b3m-2b
n+38
3b7bb
b+2b+2b+2
5c2d26c2d
m6m
6m-8(6m-8)2
n3
x-1
4x-8y5x
2y+2n2y-2n
y-67
9a8a7a
a+2a+2a+2
14
5cd2cd
2nn
5n+3(5n+3)2
a3
———+m-6
8x-5y6x
a+42
5nn4n
n-5n-5n-5
7cd27cd2
4a-5(4a-5)2
———-a+9
a-5
9x-y9x
12
y+3ny-3n
a+15
9m4m6m
m+2m+2m+2
5cd7c2d2
x6x
3x+7(3x+7)2
n1
———+x+7
x-8
6x+y3x
a+74
bbb
b+9b+9b+9
5c2d29cd2
5n-2(5n-2)2
x1
———-a-9
9x-6y7x
2m+q2m-q
m-49
yyy
y-7y-7y-7
2cd4cd2
9xx
5x-5(5x-5)2
b1
a2-b2a+b
———-m+6
4x-5y4x
x+y3x+y3
15
y+2qy-2q
n-65
xx3x
x+4x+4x+4
6cd26c2d2
3aa
4a+6(4a+6)2
a2-n2a+n
———-x-7
x+2y5y
m+77
n+5n+5n+5
2c2d23cd2
n7n
2n-7(2n-7)2
———+a+8
a-2
x-y9y
x3-y2x3-y2
p+qp-q
x+75
y7y2y
y+2y+2y+2
9cd9c2d
y3y
3y-3(3y-3)2
b5
a2-b2a-b
———+a-7
x-y4y
x-y3x-y3
2y+b2y-b
m+91
3bbb
8cd5c2d2
7xx
2x-4(2x-4)2
3x-y7y
54
n+87
2nn5n
n+9n+9n+9
8cd22cd2
3b-4(3b-4)2
———+a+9
a-4
x-8y9x
2y+3q2y-3q
y-39
yy9y
y-2y-2y-2
7cd29c2d2
7mm
4m-9(4m-9)2
a2
———+a-3
a-3
x+4y8x
x+2nx-2n
a-68
6yy7y
3cd2c2d2
4nn
4n+6(4n+6)2
———+a+4
2x+4y7x
24
x+ax-a
y+73
3xxx
x-5x-5x-5
8cd3c2d
5x+2(5x+2)2
———-a+4
7x+y6y
y+3ay-3a
a-94
7mmm
m+6m+6m+6
6cd3cd2
2m4m
2m-1(2m-1)2
x2-y2x-y
———-m-7
m-4
3x+y2x
53
2m+b2m-b
b-28
bb9b
6c2d26c2d
y8y
2y-6(2y-6)2
x2-b2x-b
———-x-9
5x-8y4y
y+qy-q
b-76
aaa
a-7a-7a-7
5c2d25c2d2
7x3x
4x+8(4x+8)2
x2
8x+y7y
3p+n3p-n
b-68
8x6xx
x+8x+8x+8
3c2d9c2d
4aa
———-x-2
2x-4y9y
2p+b2p-b
m-44
b7b7b
b+6b+6b+6
2cd7c2d2
6mm
4m-2(4m-2)2
a2-y2a-y
x+4y8y
x-yx-y
a-37
y7y5y
y+4y+4y+4
8c2d5c2d2
4m4m
6m+9(6m+9)2
———+a+2
a-7
x+y4x
x+62
n9n6n
n+6n+6n+6
6c2d2c2d2
7aa
5a+3(5a+3)2
———-a-2
8x+6y6y
x+qx-q
y+43
2x6xx
x+3x+3x+3
5cd4c2d
b8b
6b+4(6b+4)2
y1
———+a-1
6x+y4x
2m+2a2m-2a
b+54
7mm4m
6cd3c2d2
4m8m
4m-3(4m-3)2
———-m-1
m-3