人教版八年级数学上册分式的加减法练习题精选38Word文件下载.docx
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x3+y3x3+y3
3p+n3p-n
m+47
mm
4n3nn
———+———+———
n+3n+3n+3
21
6cd2cd
7m7m
————-————
5m-1(5m-1)2
m4
m2-b2m+b
———+a-7
a-5
x-2y3y
3y+b3y-b
b+74
9b4bb
b-8b-8b-8
41
5c2d29c2d2
5y7y
4y-4(4y-4)2
m1
m2-n2m-n
a2
———-a-9
x-3y5y
x+y3x+y3
3p+2a3p-2a
n-86
——+——
nn
4bb8b
———-———+———
b+4b+4b+4
43
3cd23cd2
2b5b
6b+9(6b+9)2
b3
x2
———-x-1
x-6
2x-y8y
y+3ny-3n
m-39
n3n8n
n-3n-3n-3
24
5cd7c2d
7b8b
4b-1(4b-1)2
b6
a2-b2a-b
m
———-m-5
m-3
x+2y3y
x3-yx3-y
55
2m+b2m-b
b-45
yyy
y-5y-5y-5
11
5cd8c2d
8xx
6x-4(6x-4)2
a2-n2a-n
———-a+4
a-9
8x+5y8y
42
2p+2q2p-2q
m-37
4bb4b
b-1b-1b-1
34
3cd8c2d
4x+8(4x+8)2
x1
x2-y2x-y
———+x+5
x-4
6x-y7y
x3+y2x3+y2
3x+3a3x-3a
a+52
aa
7yyy
y-9y-9y-9
2cd8c2d2
x4x
6x-2(6x-2)2
b4
———+a-6
a-6
7x-y5x
x2-y3x2-y3
2m+q2m-q
b-49
yy9y
y-7y-7y-7
8cd28c2d2
8bb
2b-1(2b-1)2
n6
———-m+5
m-1
x+y9x
a+65
bb7b
b-3b-3b-3
2cd29cd
9y7y
6y-9(6y-9)2
b1
m2-b2m-b
———-m-2
m-7
x+7y6y
45
b-47
9xxx
x+6x+6x+6
3cd9cd2
4a-1(4a-1)2
———-a+8
7x-y8x
x+yx+y
53
2p+b2p-b
a-49
5xxx
x-9x-9x-9
13
9c2d6c2d2
7mm
4m+2(4m+2)2
y3
m2-y2m+y
———+x-7
x-5
x-y4x
y+by-b
n+71
9y2yy
y-6y-6y-6
7cd29c2d
5x2x
3x-3(3x-3)2
———+m+4
m-5
6x-y2y
x-y3x-y3
12
3y+n3y-n
m+65
aaa
a-6a-6a-6
4c2d7cd
x7x
6x+2(6x+2)2
m2
m2-y2m-y
x
———+x-5
x-3
x-6y4y
2x+3n2x-3n
x+48
y4yy
32
6c2d23cd
yy
6y-7(6y-7)2
x2
x2-b2x+b
———-m-9
x-y3x
x2+yx2+y
y+71
yy3y
y+2y+2y+2
6cd28cd2
3m-1(3m-1)2
a5
a2-y2a+y
———-a-3
a-2
4x-y7y
x2+y3x2+y3
p+np-n
8y7yy
4c2d5cd2
y8y
4y-2(4y-2)2
a4
———+a-1
a-7
x+y7y
x-y2x-y2
2x+n2x-n
n-61
y5yy
y+9y+9y+9
5c2d24c2d
y3y
5y-4(5y-4)2
y6
a2-y2a-y
x-9
6x-y5y
x2-yx2-y
2x+2n2x-2n
y+48
5n4n7n
n+2n+2n+2
5cd9c2d2
3b+5(3b+5)2
y5
3x+y8x
2y+b2y-b
x-84
x7x3x
x-3x-3x-3
9cd6cd
8yy
3y-9(3y-9)2
———+m+1
x+5y3x
x+2ax-2a
m-56
xxx
x+9x+9x+9
4c2d26cd
a4a
3a+1(3a+1)2
x5
———-x-5
b-96
a5aa
a+1a+1a+1
7cd7cd
6yy
4y-9(4y-9)2
———+m+2
x-4y8y
x-yx-y
3x+b3x-b
a+78
mm9m
m-1m-1m-1
2c2d7c2d2
4x+1(4x+1)2
———+a+6
8x+2y7y
35
x-71
2xxx
3c2d8c2d
7aa
3a+7(3a+7)2
b5
———+m-2
7x-5y5x
x+y2x+y2
b+83
m4mm
m+3m+3m+3
4c2d9c2d
2y+6(2y+6)2
x+8y6y
31
n+24
4x4x6x
x-8x-8x-8
9cd8cd2
b6b
2b+4(2b+4)2
———-m-3
m-9
x+6y5y
3x+2n3x-2n
b+51
nnn
9c2d7cd2
3x-9(3x-9)2
x-y7x
x+bx-b
n-11
n-8n-8n-8
2c2d26c2d
9x3x
6x+7(6x+7)2
n3
x-3y3y
52
n+77
8n9n6n
9c2d27cd
3x+3(3x+3)2
m5
———-x+8
x+y6y
y+ay-a
33
5c2d23c2d
9n2n
3n+3(3n+3)2
2x-y7y
54
x+18
6b6b5b
4cd5cd2
5yy
2y-7(2y-7)2
m6
———+x+8
x-y5y
3p+3n3p-3n
n+31
mmm
m+5m+5m+5
9c2d9cd
8mm
5m+3(5m+3)2
———+a+1
2x+y2y
3x+a3x-a
a-67
mm6m
m-2m-2m-2
5cd25cd
5n+1(5n+1)2
a2-b2a+b
———+m-7
m-8
x+y2y
m+3am-3a
a+84
8y4y4y
7c2d27c2d
4a-2(4a-2)2
a2
———-m+4
x+y5x
2y+2q2y-2q
a+17
a3aa
a+4a+4a+4
4cd8cd2
2m+9(2m+9)2
x4
———+m+9
7x+5y6x
15
p+2ap-2a
n-27
2nn3n
4c2d22cd
2xx
3x-4(3x-4)2
———+a+8
y-34
bbb
b+9b+9b+9
2c2d26cd
8a5a
4a+1(4a+1)2
y2
———-a-2
a-1
x-5y8y
m+3nm-3n
a+74
2x8x9x
x-7x-7x-7
3c2d24c2d
n3n
4n-6(4n-6)2
———-m-6
3x-y8x
a-71
b4b7b
b+8b+8b+8
5c2d9c2d2
4b+2(4b+2)2
n2
m2-n2m+n
———+m-1
m-2