人教版初中八年级数学上册分式的化简练习题精选35文档格式.docx

1、 3x3b 10ab 30a2bc3（x4）y3 xy6x26xy5（xy）210z210zc4z24c23x23y24（xy）2 15abc2 35ab3c x249x29x146x212xn6n2 3x3n 25a2b3c40ab3c（x4）y3 xy310x210xy10y210yb2y22b24x24y2 5a2b2c 25ab2c x236x212x364x28xb4b2 10x10b25a2b2c30a3b3c3（x6）y2x22xy10（xy）26x26xb4x24b28x28y22（xy）2 10a3b3c3 10a2bc x281x212x273a26an3n2 10a10n

2、 50a3bc3（3x4y）y4x24xy6z26zc7x27y22（xy）2 45abc 10abcx212x364x28xy4y2 7x7y20a2bc 50a2bc3（x5y）y x3y32x22xa5x25a22x22y2 30a3b3c x225x27x105x210xn5n2 5x5n 15ab3c 35ab3c2（x5y）y xy22x22a2 40a3bc2x28x127a214ay7y2 8a8y 15a2bc40a3b3c3 x3y24z24zc3z23c240ab3c2x214x452a24ab2b2 4a4b20a2b230ab3c210x210xy10y210ya4y

3、24a215a2b2c3x28x128a216ab8b25ab 50ab2c（2x6）y x2y24y24b220a3b2c2 x24x24x44a28ab4b2 2a2b5abc 40abc3（3x4y）y8z28zb2z22b2 5a2b2c3 30a3bc5m210mb5b2 9m9b 10a2b35a3b2c（2x6）y4x24xy4y24yb3y23b225ab3cx26x88m216mn8n2 10m10n15a3b3（3x6）y2 x2y38x28xy10（xy）25z25c235a2b2c 45ab3c3 4x4y 15ab235abc（3x4）y24z24zb4z24b25a

4、bc25ab2cx212x358x216xn8n2 7x7n 5abc 35a3b3c（2x4y）y2x22xc 40ab3c25a3b2c2x213x365a210an5n2 2a2n（3x5y）y6x26xb10ab3c250a3b2c2 x29x26x94x28xb4b2 10x10b15ab3c30abc2（3x5）y35y25b210ab3c50abcx211x187x214xn7n2 20a3b250a2b3c2（x4）y28y28yb6x26y210abc2x28x154a28ay4y2 9a9y（3x6y）y4x24xb5x25b230a3b3c2x213x427x214xn7

5、n2 8x8n 5ab2c35a2b3c（x5y）y28（xy）26y26yb10ab2c3 20a2bc3x29x203m26mb3b2 2m2b50a2b2c2（x6）y230abc3 45a3b2cx27x124a28ay4y2 9a9y35a2b3c3（x5）y8y28yc4y24c240a2b2c3x214x402a24an2n2 15ab 40a2b2c2（3x5y）y26x26xc4x24c225a3b2cx212x202a24ay2y25ab330a3b3c（x4y）y34y24yc5y25c2 15a2b2c3 x216x210x248m216mn8n2 4m4n 5ab35

6、a2bc7（xy）25x25c2 50a2bc x21x25x45m210my5y2 4m4y25ab340a3b2c310x210xc45a2bcx210x255x210xy5y2 9x9y 20ab345ab2c28x28xa 25ab2c3x210x24（2x4y）y345ab2c15a3b2cx216x608x216xy8y2 4x4y 25ab3 50abc28z28zb5z25b2 20ab2cx24x42a24an2n2 9a9n10a3bc 45ab3c（x4y）y24y24yb 30a2b3c6m212my6y2 3m3y25a2b2 45a2b2c3（x4y）y7（xy）2

7、10x210xa3x23a2 35a3bc2 50ab2c2x210x212m24mb2b225ab2 30a2bc（3x4y）y3 30abc50a2bcx211x30 20a3b40a2bc（2x6）y350abc350a3b2c3 7m7y 10a3b335abc2（3x6y）y34x24a220a3bc23x26xy3y2 3x3y5ab3c 40a3b2c（2x6y）y230abcx211x28 15ab2c40a2bc2（x6y）y29（xy）22y22ya20abc325abcx213x308m216my8y2 10m10y 40a2b3c（3x6y）y34x24xa5abc3

8、20a3bc22m24mb2b2 7m7b 15a3bc 40a2bc10x210xb25a2bc210a2bcx25x62m24my2y2 9m9y15a2b3c（3x6）y3y23c2x28x166m212mn6n2 9m9n 5a3bc45abc22z22za4z24a25m210my5y2 4m4y 20a2bc（x5y）y310a2b3c3x212x325x210xn5n2 7x7n20a3bc 40abc2x27x124x28xn4n2 2x2n5a3b3c 35abc（2x5y）y8y28yc 45ab2c2 35a2b3c37x214xb7b2 7x7b 30a2b2c3（3x5）y240a2b2c235ab2c3x26x54m28mb4b2 7m7b 10a3b2c 40ab2c3（2x5y）y2z22zb 30ab2c4a28an4n2 3a3n35a3bc26y26yb45a3b3c3x213x40 4x4b 35a2b2c2（3x4）y335ab2c