人教版八年级数学上册分式的乘除法练习题10.doc

1、 64y2x2 x8yx26xy9y2 x23xy 7x 5 x3x5 9x225 3x55x y6y 6xab 5a2b39c 6c2da26a9 a3a26a9 a29 2 864m2 m28m3a 12b8b2 13a20x3y3xy3 9b 2y4xy 9x9(xy) ax xa xy5a5b 7ab 6ab a2b2 25y2x2 x5yx210xy25y2 x25xy 6x 7 x2x7 4x249 2x77x2 y38y 6xab 7a2b4c2 4c2da22a1 a2a25a6 a21 1 99m2 m23m3a 10b6b3 19a34xy5x2y3 5a 4y29xy 9

2、x2(xy) am ma xy9a9b 21a2b 4ab a2b2 81y2x2 x9yx210xy25y2 x25xy 6x 3 x2x7 4x249 2x76x2 y5y3 7xab 9ab9cd 8cda22a1 a2a25a6 a21 9 981m2 m29m5a 14b6b 15a316xy4x3y 5a 2y4xy 7x9(xy) by yb xy9a9b 11ab 2ab a2b2 36y2x2 x6yx24xy4y2 x22xy 2x 8 x3x9 9x281 3x95x y4y 3xa3b 5a2b9c 2c3da24a4 a1a22a1 a24 7 536m2 m26m9

3、a 16b4b 17a214xy3x2y 3a 8y5xy 3x5(xy) ny yn xy7a7b 23ab 2ab a2b2 16y2x2 x4yx28xy16y2 x24xy 2x 8 x5x7 25x249 5x75x3 y34y 7x2ab3 7a3b3cd 4cda22a1 a3a26a9 a21 5 281m2 m29m7a 10b8b 19a16xy9x3y 3a 4y9xy 5x5(xy) ay ya xy7a7b 17ab 2ab a2b2 49y2x2 x7yx214xy49y2 x27xy 7x 1 x2x1 4x21 2x16x3 y25y2 4xa2b3 7ab23

4、c2d 2cda26a9 a3a25a6 a29 1 99m2 m23m3a 12b8b 17a16x2y9x2y2 5a 4y6xy 3x4(xy) nm mn xy7a7b 25a2b 8ab a2b2 36y2x2 x6yx26xy9y2 x23xy 9x 4 x2x8 4x264 2x89x3 y8y 6xab 3ab22c 4c2da22a1 a3a26a9 a21 7 816m2 m24m3a 16b8b3 13a2xy4x3y 5a 4y6xy 9x8(xy) am ma xy3a3b 5a3b 4ab a2b2 64y2x2 x8yx216xy64y2 x28xy 7x 7 x

5、3x3 9x29 3x38x2 y37y2 3xab 9ab8c3d 6c3da26a9 a3a25a6 a29 9 349m2 m27m9a 18b2b 17a12x2y3xy 7b 2y9xy 5x8(xy) ay ya xy3a3b 27ab 10ab a2b2 4y2x2 x2yx218xy81y2 x29xy 2x 6 x3x2 9x24 3x23x y24y3 2xab2 3ab29cd 6cda24a4 a1a23a2 a24 9 536m2 m26m9a 14b2b2 11a18xy5xy 9a 8y32xy 5x3(xy) ny yn xy7a7b 20ab 4ab a2b2

6、 64y2x2 x8yx24xy4y2 x22xy 7x 2 x2x3 4x29 2x34x2 y35y 6x3a2b 5ab6cd 2c2da26a9 a1a24a3 a29 1 84m2 m22m5a 14b4b2 19a28x3y4x3y 3b 4y39xy 5x2(xy) am ma xy3a3b 3a3b 4ab a2b2 81y2x2 x9yx24xy4y2 x22xy 3x 5 x2x2 4x24 2x29x3 y8y 9x2ab 9ab33cd 2c2da26a9 a1a22a1 a29 1 216m2 m24m5a 20b4b3 17a6x2y8xy2 9b 4y4xy 9x

7、8(xy) ax xa xy5a5b 5ab 2ab a2b2 49y2x2 x7yx210xy25y2 x25xy 9x 9 x2x9 4x281 2x97x2 y6y 3x2a3b 9ab34cd 4cda24a4 a3a26a9 a24 4 425m2 m25m7a 14b6b 15a216xy5x2y 7a 6y37xy 5x3(xy) nx xn xy9a9b 18a3b 6ab a2b2 16y2x2 x4yx212xy36y2 x26xy 5x 1 x3x8 9x264 3x88x y7y 2xa3b3 9ab7c 2c2da24a4 a2a24a4 a24 5 89m2 m23

8、m5a 14b2b 17a6xy3xy 7a 6y39xy 9x5(xy) nm mn xy3a3b 6ab 6ab a2b2 49y2x2 x7yx212xy36y2 x26xy 9x 2 x2x8 4x264 2x88x y7y2 9xa2b3 5a3b4c 6c3da22a1 a3a26a9 a21 2 316m2 m24m5a 12b8b 19a16xy2x3y2 3a 8y3xy 5x9(xy) am ma xy5a5b 10a3b2 4ab a2b2 9y2x2 x3yx28xy16y2 x24xy 6x 8 x2x8 4x264 2x86x2 y5y 6xab2 7a2b4cd

9、2c3da26a9 a2a24a4 a29 5 59m2 m23m7a 18b6b2 15a10x3y2x3y 7b 4y32xy 9x8(xy) am ma xy9a9b 15a2b3 10ab a2b2 9y2x2 x3yx210xy25y2 x25xy 9x 6 x2x7 4x249 2x76x y7y3 8x2a3b3 5ab36c2 2c3da24a4 a2a23a2 a24 2 464m2 m28m3a 16b6b3 19a312x2y4xy 5a 4y2xy 9x8(xy) ay ya xy3a3b 9ab2 4ab a2b2 36y2x2 x6yx28xy16y2 x24xy

10、7x 8 x2x4 4x216 2x45x3 y6y 2xa3b2 9a2b2c 4cda22a1 a3a24a3 a21 4 564m2 m28m3a 16b8b 13a18xy2x2y 3b 2y4xy 7x5(xy) by yb xy7a7b 12ab2 4ab a2b2 49y2x2 x7yx24xy4y2 x22xy 3x 7 x3x5 9x225 3x55x2 y4y2 5x2ab 5ab22c3 6cda22a1 a3a24a3 a21 4 881m2 m29m7a 20b8b 11a34x2y3x2y3 5b 6y2xy 7x7(xy) ny yn xy7a7b 23ab3 2

11、ab a2b2 25y2x2 x5yx210xy25y2 x25xy 7x 7 x2x7 4x249 2x75x3 y4y3 8x3ab3 9a2b34c2d 8cda22a1 a1a23a2 a21 8 916m2 m24m9a 14b2b 13a312x2y5x3y3 7a 6y5xy 5x7(xy) nm mn xy7a7b 15ab 6ab a2b2 81y2x2 x9yx28xy16y2 x24xy 4x 4 x3x1 9x21 3x14x y5y2 3x3ab 7a2b9c2d 4cda26a9 a1a23a2 a29 8 69m2 m23m3a 16b8b 17a12xy5x3y

12、2 3b 2y2xy 9x4(xy) nx xn xy9a9b 27a2b3 10ab a2b2 25y2x2 x5yx26xy9y2 x23xy 3x 7 x2x8 4x264 2x85x y4y 6x2a2b 9a3b34c2d 4c2da26a9 a3a24a3 a29 9 825m2 m25m9a 12b6b 19a26xy4x2y 7b 2y9xy 3x2(xy) by yb xy9a9b 21a2b2 4ab a2b2 4y2x2 x2yx24xy4y2 x22xy 3x 1 x5x8 25x264 5x82x y3y 9x2ab 7ab8cd 2c2da26a9 a2a25a6

13、a29 1 736m2 m26m9a 20b8b 11a2x2y7xy 9b 6y36xy 9x4(xy) nx xn xy7a7b 12ab2 6ab a2b2 64y2x2 x8yx216xy64y2 x28xy 2x 4 x3x6 9x236 3x66x2 y7y 5xab3 9a2b26c 8cda22a1 a2a24a4 a21 6 216m2 m24m3a 18b8b3 13a34x3y5x3y2 3b 2y34xy 5x8(xy) nm mn xy7a7b 26a3b2 2ab a2b2 64y2x2 x8yx28xy16y2 x24xy 3x 9 x2x8 4x264 2x83

14、x3 y4y2 8xa3b 9ab36c 6cda26a9 a2a24a4 a29 3 536m2 m26m9a 16b4b 13a6x3y2xy 7b 6y2xy 5x2(xy) by yb xy3a3b 17a2b2 2ab a2b2 16y2x2 x4yx28xy16y2 x24xy 4x 1 x3x9 9x281 3x94x2 y33y3 6x3a2b3 7a2b28c2 8cda24a4 a1a24a3 a24 2 7100m2 m210m3a 16b6b 17a320xy6xy2 5a 4y39xy 3x8(xy) by yb xy3a3b 30a2b3 8ab a2b2 4y2x

15、2 x2yx210xy25y2 x25xy 2x 1 x3x7 9x249 3x78x3 y27y2 6xa2b3 9a2b8c3 4cda26a9 a3a25a6 a29 4 116m2 m24m7a 16b2b 15a2xy7x3y2 7a 4y6xy 9x7(xy) bx xb xy7a7b 14ab2 4ab a2b2 36y2x2 x6yx28xy16y2 x24xy 4x 2 x4x8 16x264 4x87x3 y26y2 8xab 3a3b26c3d 6c2da24a4 a3a25a6 a24 6 5100m2 m210m5a 14b6b 15a320x2y4x2y 9a 6y

16、2xy 5x2(xy) ny yn xy5a5b 9a3b3 4ab a2b2 81y2x2 x9yx216xy64y2 x28xy 5x 9 x2x9 4x281 2x99x2 y8y2 8x3a2b 9ab28c2 6c3da24a4 a2a23a2 a24 9 881m2 m29m5a 10b2b3 15a4xy4xy 3b 8y34xy 3x2(xy) ax xa xy5a5b 5a2b 6ab a2b2 4y2x2 x2yx216xy64y2 x28xy 4x 9 x4x7 16x249 4x73x y4y 7x2ab3 3a2b7cd 8c2da22a1 a2a25a6 a21 1 825m2 m25m9a 12b4b 17a20x2y3xy 3a 8y2xy 9x5(xy) ay ya xy9a9b 11a2b 6ab a2b2 9y2x2 x3yx214xy49y2 x27xy