人教版初中八年级数学上册分式的化简练习题精选41Word文件下载.docx

1、9x29y22（xy）2 30ab2c2 10ab3c2 x24x26x82x24xn2n2 6x6n25abc 50a2b2c（2x6）y xy28x28xy3（xy）24x24xa5x25a27x27y24（xy）2 25abc 5ab2c3 x264x211x244x28xy4y2 9x9y 15a3bc50ab3c（3x6）y22x22xy9（xy）24y24yc2y22c24x24y25ab2c230a3b2c2x212x324m28mn4n2 9m9n 5a2b3c 45a3b3c（x4y）y34x24xy10（xy）24y24ya2y22a22x22y210abc 20a3b2c

2、3 x281x213x362x24xb2b2 6x6b25a3b3 40ab2c（3x5y）y2 x2y310x210xy6（xy）22x22xb3x23b2 15abc 25ab3c3x210x162a24ay2y2 6a6y15ab2c50a2b2c3（x4）y6x26xy9（xy）24y24c26x26y2 45ab2c15a2b2c3 x2100x213x304a28ay4y2 6a6y10a2b30a3b3c2（x6）y2y22ya4y24a215a3b3c35ab2c2 x216x29x205a210an5n2 3a3n15a3b345abc2 x3y2z22zc2（xy）2 5a

3、2bcx212x276a212ab6b2 2a2b20a3b 30ab3c（x6y）y210z210zb3z23b25（xy）230ab2c315abc3x210x248a216ab8b2 20ab2c40a3bc（x5y）y4x24a25x25y220abc 25a2bc3x211x308m216mb8b2 8m8b 50a2bc（2x4y）y2x22xy6x26xa50abc215a2bcx211x247x214xy7y2 10x10y 20ab2 50abc3（2x4y）y3 xy36x26xy10y210yb2y22b245abc320a2b3cx212x276m212mb6b2 2m

4、2b15ab3c 45ab2c3（x6）y10（xy）22z22zb2z22b245a3b2c245ab2cx212x206a212an6n2 6a6n15a3b2 45abc8x28xa2x22a2 25a2bc 50a2b3c2x210x248m216mn8n2 4m4n 35a3b2c8x28xc4x24c23x23y220ab2c 20a2bc3x212x205a210ay5y2（3x4）y310x210xa45a2bc 10abc27m214mb7b2 6m6b 50a3b2c（x5）y7（xy）24z24za2z22a2 35ab3c2 15a2bc x29x25x66x212xy

5、6y2 7x7y 25ab 40ab3c（x5y）y4y24yc35a2bc2x27x10 5m5b35a2b3c28z28zb x21x27x64x28xb4b2 6x6b 10a3b2c40abc（2x4）y2z22zb5z25b245a3bc320a2b2c2x213x404m28mn4n2 5m5n20a2b35a2bc（3x6）y210a2b2c330a3bcx25x64m28mb4b2 3m3b 10ab 45a2b2c（x6y）y6x26xc3x23c2 25abc2 x225x210x257x214xb7b2 4x4b 20abc（2x4y）y26z26zb 40a2b3c210abc26x212xb6b2 3x3b（3x6y）y28（x