1、人教版初中八年级数学上册分式的化简练习题精选115abc330abc3 x29x29x188m216my8y2 2m2y 15ab30a2bc(3x6)y3 xy22x22xy6(xy)26y26ya4y24a26x26y25(xy)235a2bc2 35a3b3c3 x249x211x285m210mn5n2 6m6n 25a3bc 45a3bc3(3x6)y2 x3y6x26xy8(xy)22x22xa2x22a24x24y22(xy)2 15a2bc335ab2c2 x24x25x68x216xn8n2 2x2n10a3b2c45a3bc(3x5y)y x3y10x210xy9(xy)2
2、8z28zc3z23c28x28y24(xy)2 15ab3c3 50a3bc x29x25x63a26ay3y2 5a5y15abc50a3b3c3(2x5)y x2y6x26xy6(xy)210z210za4z24a24x24y24(xy)235a2bc3 5a2bc3 x225x27x105a210ay5y2 10a10y5a3b2c 30ab2c(x5)y3 x2y210x210xy3(xy)210z210zb4z24b24x24y24(xy)2 20ab2c 20a2b3c x21x23x23a26ab3b2 4a4b25ab3 45a3bc3(3x5)y x3y210x210xy4
3、(xy)28x28xa5x25a26x26y24(xy)2 45ab3c240ab2c x264x213x405a210ay5y2 8a8y 15a3b250abc2(3x5y)y x2y8x28xy5(xy)22x22xc3x23c27x27y25(xy)235a2b3c2 10a2b3c x264x213x404a28ab4b2 3a3b 25abc35a3bc(x6y)y3 x2y32x22xy2(xy)28x28xa2x22a25x25y25(xy)2 45a2b2c2 15abc3 x236x210x248x216xn8n2 10x10n15abc45a2b3c(2x5)y3 xy6
4、x26xy7(xy)26y26yc4y24c25x25y25(xy)2 20a2bc 50a2b3c3 x29x25x63x26xn3n2 9x9n 15ab 45a2b3c2(x4y)y3 x3y2x22xy2(xy)28x28xa5x25a22x22y23(xy)210abc2 20abc3 x21x23x27m214mb7b2 3m3b 25a2b2c 50a3b3c(2x6)y3 x2y32x22xy5(xy)26z26zb5z25b24x24y24(xy)215a3b3c35a2b2c x216x29x208x216xy8y2 6x6y 25a2b 45a2bc(3x5)y3 x3y
5、32x22xy10(xy)26y26yc4y24c24x24y23(xy)210a3bc320a3b3c x225x210x253m26mn3n2 5m5n 20ab3 40abc2(x6)y2 xy2x22xy2(xy)26x26xa5x25a27x27y25(xy)2 40abc230a3bc x249x212x357a214an7n2 5a5n 10ab2c40a2b2c3(x4)y xy210x210xy10(xy)26x26xa4x24a22x22y23(xy)220a2bc 45abc3 x225x27x103m26my3y2 2m2y 20a2b2c30a2bc3(2x5)y x
6、y36x26xy7(xy)22y22yc2y22c23x23y24(xy)215a2b3c 40a2b3c x29x25x66a212ab6b2 2a2b 15abc40a3b3c(x6y)y3 x3y38x28xy10(xy)24z24za5z25a24x24y25(xy)235a3b2c2 30a2b2c2 x21x24x34m28mn4n2 5m5n 5a2b3c 40a3bc2(2x4y)y3 x2y28x28xy4(xy)24y24yb2y22b23x23y25(xy)215a3b2c 20ab2c3 x29x26x97m214mn7n2 2m2n 10a2b2 40ab3c2(x4
7、)y xy310x210xy5(xy)24x24xc3x23c23x23y23(xy)2 50a2b2c3 5a3bc x24x24x48x216xb8b2 9x9b5a2b3c30a3b2c(3x4)y2 x2y2x22xy8(xy)210x210xc5x25c25x25y25(xy)2 45a2b2c 20abc3 x216x210x246m212mb6b2 8m8b5ab2 50ab3c2(3x5y)y3 x3y36x26xy10(xy)26x26xc5x25c24x24y23(xy)215ab3c2 35a2b2c3 x264x214x488x216xn8n2 10x10n15abc3
8、0a2bc(3x6)y3 xy6x26xy5(xy)28z28zc3z23c24x24y25(xy)215abc5a3b2c2 x29x26x96x212xy6y2 2x2y20abc 50ab2c3(x4)y3 x2y32x22xy3(xy)210x210xa2x22a27x27y24(xy)215ab3c2 50a3b2c2 x24x24x46m212mn6n2 3m3n15a3b3c35abc2(3x6)y2 x3y28x28xy7(xy)28x28xc3x23c22x22y22(xy)2 35abc2 50ab2c x29x27x127x214xn7n2 10x10n25a2b2c30
9、a2b3c2(x5y)y x2y4x24xy9(xy)28x28xa5x25a26x26y24(xy)2 30ab3c 20a3bc3 x281x215x543m26mn3n2 7m7n 15a3b2c 40abc(2x4)y xy8x28xy8(xy)24x24xb2x22b27x27y23(xy)2 20a3bc240a2bc x281x212x273x26xn3n2 10x10n 20a2b 40a2b2c3(3x6)y2 x3y28x28xy2(xy)24z24zb4z24b24x24y23(xy)210a3bc3 50abc x225x27x102x24xy2y2 5x5y5ab2
10、30a3b2c2(2x6y)y3 xy22x22xy8(xy)210y210yc2y22c25x25y22(xy)2 5ab3c 15ab2c x249x210x218a216ab8b2 4a4b 15a2b2c50a3b3c3(3x6)y xy28x28xy7(xy)24y24yc4y24c25x25y24(xy)225abc 5a2b2c3 x2100x215x506a212ay6y2 7a7y10abc35a3b3c(3x5y)y x3y6x26xy7(xy)26y26yb4y24b23x23y25(xy)2 20a2bc 25abc2 x21x25x45x210xb5b2 2x2b10
11、a2b 35abc(x6)y2 xy32x22xy7(xy)210x210xc5x25c22x22y24(xy)220a3bc35ab2c x225x27x108m216mb8b2 9m9b20ab45a3b2c(3x6)y x3y8x28xy4(xy)28y28yb2y22b25x25y23(xy)2 35ab2c25ab2c x21x26x53x26xb3b2 10x10b20a2b3c45a2b2c3(2x6)y x3y210x210xy3(xy)28z28za4z24a23x23y25(xy)245abc30abc x2100x213x305a210ab5b2 4a4b15ab 50a
12、3b3c(2x5)y xy22x22xy8(xy)24z24za2z22a29x29y22(xy)220ab3c2 10a2bc3 x236x212x367x214xn7n2 10x10n25ab30a2b2c2(2x5)y2 x2y310x210xy9(xy)24z24zc4z24c25x25y24(xy)2 10ab3c2 40ab2c x24x24x44m28mn4n2 6m6n 20ab3c 35a2bc3(2x6)y3 xy32x22xy8(xy)24x24xb3x23b25x25y24(xy)230a3bc 20abc x2100x216x604m28mb4b2 10m10b25a
13、3b30a2b3c(3x4)y2 xy6x26xy6(xy)28x28xb3x23b24x24y22(xy)220a2bc20a2b3c2 x281x211x183x26xy3y2 4x4y10a2bc 50a2b2c3(x5)y2 xy2x22xy8(xy)22z22zb4z24b28x28y22(xy)245ab3c35a2bc2 x264x211x242a24an2n2 10a10n 25ab3c 50a3bc(3x6y)y2 x3y38x28xy5(xy)28y28ya3y23a24x24y23(xy)25a3bc 45ab3c x249x29x142m24my2y2 3m3y5a2b
14、3c35abc(3x5y)y x2y22x22xy5(xy)24x24xa4x24a22x22y23(xy)2 35abc345abc x249x213x422a24an2n2 3a3n15a2bc 40a2bc(x6)y x3y26x26xy2(xy)24y24yb4y24b28x28y22(xy)245a2b2c 5a2b2c x225x211x305m210mn5n2 10m10n 5a3bc 30ab2c3(3x5y)y x3y28x28xy6(xy)210x210xc5x25c29x29y24(xy)230a3b2c 5abc2 x281x215x543x26xn3n2 9x9n 5
15、a3b 35abc2(3x4)y3 xy36x26xy9(xy)26z26za4z24a23x23y22(xy)2 20a2b2c3 30ab3c3 x236x29x186m212mb6b2 7m7b 10ab2c30abc(x6y)y xy36x26xy9(xy)22y22ya3y23a29x29y25(xy)240abc 45ab2c3 x24x25x66m212my6y2 3m3y 10a3b2 35ab2c2(x4)y3 xy32x22xy6(xy)210z210zc3z23c25x25y25(xy)2 40a3bc3 30ab2c2 x264x214x488m216mb8b2 10m
16、10b5a2bc50ab3c(2x5)y3 x3y24x24xy9(xy)28z28zc3z23c27x27y22(xy)2 15abc2 5a3b2c x2100x216x605a210ay5y2 5a5y15a2bc 45abc(2x6)y3 x2y8x28xy2(xy)26y26yb2y22b25x25y25(xy)215ab2c3 25a2bc x216x27x124m28my4y2 3m3y20a3b2c50ab2c3(2x4)y3 x3y4x24xy8(xy)22z22zb3z23b23x23y24(xy)240abc230abc x225x210x253x26xn3n2 2x2n25a3b35a2bc(3x4)y xy4x24xy4(xy)22x22xb5x25b24x24y24(xy)250a3b2c2 5ab2c3 x24x26x83m26mn3n2 8m8n5abc 30a2bc(2
