初中八年级数学上册分式的化简练习题精选23.docx

1、初中八年级数学上册分式的化简练习题精选2310a2b3c325abc3 x225x27x102m24mn2n2 3m3n15ab3c 40ab2c(2x4)y2 x2y4x24xy8(xy)22y22yb2y22b25x25y25(xy)245ab2c2 10a2b2c3 x24x26x86m212my6y2 3m3y25ab2c30abc(2x6)y3 x3y8x28xy4(xy)28y28yc4y24c23x23y23(xy)220ab3c315a2bc3 x249x211x283a26an3n2 8a8n5ab3c 40a2bc(2x4y)y3 xy10x210xy5(xy)24x24x

2、b4x24b29x29y22(xy)210abc50a2b2c x264x210x163a26ab3b2 4a4b 25a2b3 35abc2(x4)y3 x3y38x28xy8(xy)26x26xb5x25b23x23y22(xy)2 40a2bc15abc2 x21x27x62m24mb2b2 4m4b15ab335ab2c(3x4)y xy28x28xy2(xy)210y210ya2y22a27x27y25(xy)245abc3 5a2b3c x281x214x456m212my6y2 8m8y5ab40a3bc3(3x6y)y3 xy4x24xy2(xy)24x24xa4x24a23x

3、23y24(xy)2 10a2bc345a2bc x225x211x305a210ab5b2 6a6b 15ab3c35a2b3c(3x6)y3 xy38x28xy2(xy)22z22za3z23a23x23y23(xy)240ab2c 5ab3c x21x25x47x214xy7y2 9x9y 5a2b2 30a3bc(x6)y xy8x28xy8(xy)22x22xb5x25b23x23y23(xy)2 15a3b2c335abc3 x29x25x64a28ab4b2 2a2b 10a3b330ab2c2(x4)y x3y34x24xy8(xy)26y26ya2y22a26x26y23(x

4、y)2 20a3b2c15ab3c3 x236x211x302m24mb2b2 3m3b 20a2bc30ab3c(x6)y3 xy8x28xy5(xy)24z24zb4z24b25x25y22(xy)2 50a2bc40abc x225x210x257m214my7y2 3m3y 20abc30a2b2c(x6)y2 x2y26x26xy9(xy)28z28za2z22a23x23y24(xy)2 5abc 20ab2c x225x211x306a212ab6b2 8a8b 20a3b350a3bc3(x4y)y2 xy38x28xy9(xy)24x24xb3x23b28x28y22(xy)

5、210ab2c220abc x2100x213x307m214mb7b2 10m10b10a2bc 35abc2(2x4y)y3 xy210x210xy4(xy)24y24yc4y24c23x23y24(xy)2 5abc2 30a2bc x21x23x24a28ay4y2 6a6y20a3b40abc2(x4)y xy10x210xy5(xy)24z24zb2z22b24x24y22(xy)2 25ab2c2 30ab3c2 x29x29x188a216ab8b2 10a10b 25abc 30abc(x6y)y x2y24x24xy3(xy)26z26zb5z25b27x27y24(xy)

6、240a2b2c5a3bc x2100x213x305x210xy5y2 9x9y 20ab 35a3bc3(3x5)y3 x2y36x26xy10(xy)24z24zb3z23b25x25y23(xy)2 40abc350a2bc x21x25x48m216mb8b2 3m3b 10abc35abc3(3x6)y3 xy10x210xy5(xy)26z26zc5z25c23x23y22(xy)2 20a2b3c5a3b2c3 x236x28x125a210an5n2 8a8n5ab340abc3(x4y)y3 xy210x210xy8(xy)24y24ya5y25a27x27y22(xy)2

7、 35a3b3c3 50abc3 x225x28x156a212an6n2 10a10n5ab3c 30abc(x6)y x3y210x210xy9(xy)24x24xa5x25a27x27y25(xy)2 15abc230a3bc2 x249x213x423x26xy3y2 3x3y 20a3b2c 35a3bc2(x6)y x2y36x26xy9(xy)24x24xa3x23a26x26y24(xy)2 10a2b3c3 30ab2c x236x212x366a212an6n2 10a10n5ab 40abc(3x6y)y x3y28x28xy10(xy)24z24za2z22a29x29

8、y25(xy)2 5abc 35ab2c3 x29x29x187x214xb7b2 2x2b 15ab3c 40a2bc(x6y)y2 x3y34x24xy5(xy)210x210xb5x25b25x25y24(xy)230ab3c20abc x236x29x183m26my3y2 5m5y15ab30abc2(3x4y)y xy2x22xy3(xy)210y210ya4y24a25x25y24(xy)2 40ab2c2 10a2bc x249x211x284m28mb4b2 5m5b20ab2c 35abc(x6)y3 x2y6x26xy3(xy)26y26ya3y23a23x23y23(x

9、y)2 20a3bc25abc x21x24x36x212xb6b2 2x2b25a3b40a2b3c(3x5y)y3 xy310x210xy5(xy)28x28xc4x24c28x28y23(xy)2 30a2b3c320a2bc x225x27x103m26mn3n2 3m3n 5a2bc45a3bc(x5y)y x3y10x210xy2(xy)24y24yb2y22b25x25y22(xy)2 20a2bc 15a3b3c x264x210x162m24mn2n2 5m5n 10ab3c35a2bc3(x6)y3 xy2x22xy3(xy)28y28yb2y22b23x23y23(xy)

10、235a3b3c240ab2c x225x29x204a28ay4y2 2a2y 15ab 50a3bc(2x6)y3 xy8x28xy8(xy)24z24zc3z23c24x24y24(xy)2 30ab2c3 25a2b2c x29x28x157a214an7n2 10a10n 15a3b2c 45abc(x4y)y2 xy22x22xy2(xy)22x22xc3x23c22x22y25(xy)2 30abc3 45a3bc x249x210x218m216mb8b2 6m6b 20a2b 35abc2(3x5)y2 xy10x210xy4(xy)28z28za5z25a27x27y23(

11、xy)2 10abc3 25ab3c x225x27x106m212mb6b2 7m7b10ab 35a2bc(2x4)y xy38x28xy5(xy)22y22yc3y23c22x22y24(xy)2 35ab3c30abc x281x211x185a210an5n2 6a6n 20a2b3c40ab3c3(3x6)y x3y38x28xy9(xy)22y22ya2y22a22x22y25(xy)2 35a2b3c10ab2c2 x264x213x406m212my6y2 5m5y5a3b 50abc(2x4)y3 x2y38x28xy4(xy)26y26ya2y22a24x24y22(xy

12、)230a2b2c3 20ab3c2 x264x211x248m216mb8b2 8m8b25abc 30a3b2c2(3x6)y x2y310x210xy4(xy)28z28za4z24a23x23y25(xy)235a2bc20a2bc3 x21x25x48m216my8y2 9m9y 20ab3c 50abc2(3x4y)y2 x3y10x210xy5(xy)210x210xa3x23a22x22y25(xy)225ab2c215a3b2c x236x211x308a216ay8y2 10a10y25a2b3c35a2b2c(3x6)y x2y210x210xy3(xy)26z26za3

13、z23a23x23y25(xy)210ab2c30abc2 x24x25x65x210xy5y2 4x4y 5a2b3c30a3bc3(2x4)y3 xy8x28xy7(xy)22x22xb5x25b22x22y25(xy)2 20a2b2c2 25a3b3c x225x210x254m28mb4b2 6m6b5a2b2c 45a2b2c(2x4)y3 x2y8x28xy9(xy)24x24xa4x24a25x25y24(xy)240ab3c2 35a3b2c3 x2100x212x208a216an8n2 10a10n10a2b230a2b3c(3x6)y x2y10x210xy4(xy)2

14、2x22xb4x24b29x29y22(xy)25ab3c35a3b3c2 x2100x213x308m216mb8b2 2m2b25ab35abc(3x4y)y x3y310x210xy5(xy)28y28yc5y25c24x24y22(xy)235ab2c335ab2c2 x29x26x93m26my3y2 7m7y 10a3b 35a2bc(2x5)y2 xy10x210xy2(xy)28x28xc3x23c22x22y23(xy)2 25a3b2c3 50a2bc x24x25x62a24ay2y2 2a2y20ab3c 35a3b3c(2x5y)y xy210x210xy8(xy)2

15、6y26yb5y25b27x27y23(xy)2 45ab3c 15abc x24x27x105x210xn5n2 3x3n15a3b3c50ab2c2(x5y)y2 xy10x210xy7(xy)24x24xa5x25a26x26y22(xy)2 40abc3 30ab2c2 x21x27x65x210xy5y2 9x9y5a3bc50a3b3c(x6y)y2 xy8x28xy3(xy)210x210xc4x24c23x23y24(xy)2 30a3b2c330ab3c x24x25x65x210xy5y2 2x2y 25a2b2c 40a3b2c(3x5)y2 xy22x22xy5(xy)

16、24y24yc5y25c26x26y23(xy)25a3bc240a3bc2 x24x27x106m212my6y2 2m2y 25a3bc 30a2b2c(x6)y xy34x24xy7(xy)22y22yb2y22b23x23y23(xy)2 40a3bc10abc x264x210x166a212ay6y2 10a10y10a3b2c 35abc(2x5)y3 xy4x24xy2(xy)210y210yc3y23c26x26y25(xy)2 15a2bc2 40a2bc3 x236x28x125m210mb5b2 3m3b10ab245ab2c(x4y)y xy10x210xy5(xy)28y28yc5y25c26x26y23(xy)2 35a2bc45a3b3c2 x2100x214x402a24ab2b2 2a2b 5a3b2 35ab3c(2x6y)y x3y32x2