人教版初中八年级数学上册分式的化简练习题精选59.docx

1、人教版初中八年级数学上册分式的化简练习题精选59(3x6y)y xy26x26xy7(xy)22x22xa5x25a29x29y22(xy)240abc2 45a3b2c x236x210x243a26an3n2 10a10n5a2b335ab3c(2x5y)y2 xy10x210xy2(xy)24z24zc5z25c27x27y25(xy)225abc3 20a3bc2 x216x29x208m216my8y2 3m3y 15ab50a2b2c(x5)y3 x2y32x22xy8(xy)26z26zb4z24b29x29y25(xy)2 45a3b3c40a2b3c x236x212x367

2、m214mn7n2 6m6n 15a3bc35a2b2c(3x5y)y x3y36x26xy7(xy)26x26xc3x23c25x25y23(xy)2 25abc3 25a2bc x29x28x158x216xy8y2 4x4y 15a2b35a2b2c3(2x6)y x3y26x26xy6(xy)22x22xc2x22c25x25y25(xy)2 5abc245abc2 x225x27x104m28my4y2 9m9y 5ab2c 50ab3c(x6)y2 xy34x24xy5(xy)28y28ya5y25a24x24y22(xy)215ab3c215abc x21x24x34m28mb4

3、b2 10m10b 5ab2 40a2b2c(2x4y)y x3y6x26xy6(xy)210x210xc4x24c22x22y22(xy)2 20a3b2c45a2b2c3 x216x210x242x24xy2y2 9x9y10ab 50ab2c(2x4y)y2 xy2x22xy9(xy)22z22zc2z22c27x27y23(xy)245ab3c 30ab3c3 x236x211x308a216ay8y2 3a3y 10a3b 45abc(2x5y)y xy10x210xy6(xy)26y26yc2y22c24x24y25(xy)235ab3c35a3bc3 x249x211x282m2

4、4my2y2 8m8y 10a2b2 45a3b2c(x4y)y2 xy10x210xy7(xy)24y24ya5y25a24x24y25(xy)2 35a3bc35a3b3c3 x29x25x65x210xy5y2 8x8y 5a2b2 35a2bc(x4y)y x3y6x26xy3(xy)24z24zb3z23b25x25y25(xy)2 5a3b3c15ab2c3 x2100x212x208a216ab8b2 8a8b15a2b 50abc2(x5)y x2y22x22xy6(xy)26z26zc4z24c28x28y24(xy)220a3bc310a2bc3 x236x29x182m2

5、4mb2b2 2m2b20a2b45a2b2c3(x4y)y xy210x210xy7(xy)210z210zc4z24c26x26y23(xy)2 10a3b3c2 15abc2 x216x210x247x214xy7y2 2x2y 20a2b2 40abc(x5)y3 xy34x24xy2(xy)26z26za3z23a25x25y24(xy)2 30ab2c 25a3b2c x249x29x144x28xb4b2 7x7b5a2bc50ab2c(3x4)y3 x2y24x24xy2(xy)22x22xc3x23c27x27y24(xy)2 10a2bc 20abc3 x236x211x3

6、05x210xn5n2 8x8n20a2b235a3b3c2(x5)y3 x3y8x28xy6(xy)22z22zb2z22b25x25y22(xy)250a2b3c310ab2c x29x26x98a216an8n2 4a4n10abc45ab2c2(x5y)y xy38x28xy9(xy)210x210xb4x24b24x24y22(xy)210a2b2c20ab3c3 x264x214x484a28ab4b2 6a6b10ab2 45abc2(2x6)y2 xy32x22xy3(xy)22y22yb5y25b29x29y23(xy)2 15ab2c2 25a3b2c3 x24x24x48

7、m216my8y2 6m6y15a3b 40abc2(3x6)y x3y22x22xy9(xy)28z28zb4z24b24x24y25(xy)2 40ab2c210abc x21x25x43m26my3y2 4m4y20a2bc 30a2b3c(3x6y)y2 xy24x24xy8(xy)24y24ya4y24a22x22y22(xy)225ab3c2 25a2bc x249x213x427a214ab7b2 6a6b20a3bc45a3bc(x6)y x2y28x28xy10(xy)22z22zc4z24c22x22y22(xy)2 15abc35a2bc x216x29x203m26mb

8、3b2 6m6b15abc40a3b3c(x6)y xy310x210xy3(xy)210y210yb5y25b24x24y22(xy)2 10ab3c 5a2b2c x264x210x168x216xn8n2 10x10n 20a3b2c50ab3c(x5)y2 xy38x28xy7(xy)22z22zb5z25b24x24y24(xy)2 40a2b2c 5a3bc x236x211x304a28ab4b2 6a6b 10ab50a3bc3(2x4)y x3y6x26xy10(xy)26y26ya3y23a29x29y25(xy)25abc2 45a3bc3 x236x29x186x212

9、xy6y2 3x3y25a2bc 45a2bc(x6y)y2 xy24x24xy3(xy)22x22xb5x25b27x27y24(xy)2 50a3b3c2 45abc x216x210x246a212ay6y2 3a3y 10a3bc50abc3(2x6)y x3y24x24xy2(xy)28x28xa4x24a29x29y23(xy)245a2b3c3 15a3bc2 x264x210x164x28xb4b2 7x7b 25abc30a3bc2(x4)y x2y36x26xy9(xy)24y24ya5y25a29x29y25(xy)2 20a2b3c330a2bc x24x26x82x2

10、4xy2y2 7x7y 25ab3c 50a2bc(x6)y3 xy4x24xy6(xy)22x22xa4x24a29x29y22(xy)250a2b2c35abc x281x212x275a210ay5y2 6a6y10ab3c35abc(x5)y2 xy2x22xy9(xy)210x210xc5x25c24x24y22(xy)215a3bc335ab3c2 x2100x216x606m212mb6b2 5m5b20ab2c 50a2b2c3(x6)y xy6x26xy9(xy)24y24yc3y23c26x26y24(xy)250a3bc240abc3 x236x28x128m216mb8

11、b2 10m10b 5abc 35ab3c(x6y)y xy6x26xy3(xy)210y210yc2y22c29x29y24(xy)220abc220abc x236x212x365a210ay5y2 7a7y25a3b40a3b3c3(x4y)y2 x3y38x28xy3(xy)210x210xb4x24b27x27y25(xy)2 10a3b2c315abc x249x29x145m210my5y2 4m4y5a2b3c30a2b2c(x5y)y2 xy36x26xy2(xy)28y28ya5y25a25x25y23(xy)2 10ab2c10a3b3c x216x28x167x214x

12、y7y2 10x10y20abc 35abc3(x4)y2 x2y38x28xy3(xy)210x210xc3x23c29x29y25(xy)215a2bc 50a3b2c x29x25x62x24xn2n2 2x2n5a2b335a3bc3(3x5)y2 x3y210x210xy8(xy)210x210xb2x22b27x27y25(xy)2 30a3b3c3 50a3b3c2 x29x29x183x26xb3b2 8x8b 5a2b330a2b3c(3x5)y xy10x210xy10(xy)210z210zb4z24b23x23y23(xy)2 50a2b3c350abc3 x236x2

13、11x302x24xy2y2 10x10y 15a2b3 50a3bc2(3x5)y x2y10x210xy8(xy)22z22zc2z22c29x29y22(xy)25a3bc2 15a3b3c x24x28x123x26xy3y2 8x8y 15a3b3c35a3bc2(x6)y x3y34x24xy9(xy)22y22yc2y22c25x25y23(xy)230abc335a2b3c x21x23x22x24xy2y2 5x5y10a2b345abc(x5y)y3 x3y10x210xy10(xy)26y26yb4y24b22x22y23(xy)2 45ab2c 25abc3 x264x

14、210x166a212ab6b2 2a2b 15a2b3c50abc(x4)y2 x3y10x210xy4(xy)26y26yb3y23b27x27y25(xy)2 45a2bc 40a3b3c x236x29x187x214xy7y2 4x4y 15a2bc40abc(2x4y)y3 x2y210x210xy9(xy)28y28yc3y23c27x27y25(xy)245ab2c10a3bc x236x212x368x216xn8n2 3x3n 10ab3c30a2bc2(x6)y x2y4x24xy3(xy)28y28yb4y24b25x25y22(xy)245abc230abc2 x24

15、9x211x285a210ay5y2 6a6y 10a2b3c35abc(x5y)y2 x2y310x210xy10(xy)26z26za4z24a27x27y24(xy)2 15abc10a2b2c3 x249x210x216x212xy6y2 6x6y15a2b3c 45ab3c3(2x6)y2 x3y310x210xy4(xy)210x210xb4x24b28x28y25(xy)2 5a2b3c330ab2c x281x215x548m216my8y2 5m5y25ab2 40ab3c3(x4)y3 xy210x210xy5(xy)24x24xa3x23a27x27y22(xy)215a

16、2b3c35ab3c2 x281x214x454x28xb4b2 3x3b20abc 30abc(2x5)y2 x3y28x28xy3(xy)26y26ya4y24a24x24y23(xy)2 15ab2c 20a2bc2 x2100x212x206x212xn6n2 2x2n20ab2 50abc(2x5)y2 x3y10x210xy7(xy)24x24xb3x23b24x24y25(xy)2 5a2b3c3 5a3b2c2 x29x25x66x212xb6b2 6x6b 10ab3 30ab2c2(3x4)y xy8x28xy9(xy)26z26za3z23a24x24y24(xy)2 30a2b2c 10a2b2c3 x24x25x64m28mn4n2 5m5n 10a3b30abc2(3x4y)y3 xy38x28xy7(xy)24x24xc2x22c27x27y23(xy)245a3bc