人教版初二数学上册分式的乘除法练习题精选46.docx

1、人教版初二数学上册分式的乘除法练习题精选4610x2y9xy3 9b 4y29xy 5x2(xy) ny yn xy3a3b 15ab 4ab a2b2 25y2x2 x5yx26xy9y2 x23xy 3x 9 x4x6 16x236 4x65x2 y26y 5xab3 3ab7c3d 6c3da24a4 a3a26a9 a24 1 481m2 m29m5a 16b8b3 11a22xy9x3y2 7a 4y28xy 5x3(xy) ny yn xy7a7b 14a2b 10ab a2b2 9y2x2 x3yx28xy16y2 x24xy 6x 5 x2x1 4x21 2x15x y26y3

2、 7x3a3b2 7a2b38c3 6cda26a9 a1a23a2 a29 4 6100m2 m210m9a 10b2b2 11a220xy4x3y 5a 6y8xy 7x5(xy) bx xb xy7a7b 28a3b 10ab a2b2 64y2x2 x8yx26xy9y2 x23xy 4x 2 x2x4 4x216 2x46x3 y25y3 4x2ab2 5ab37c2 2c2da22a1 a1a23a2 a21 7 39m2 m23m3a 18b2b 13a316xy3x2y2 7a 8y37xy 3x9(xy) by yb xy9a9b 22ab 10ab a2b2 16y2x2

3、x4yx218xy81y2 x29xy 6x 7 x3x7 9x249 3x74x y33y2 7xab3 7ab9c 4c3da22a1 a2a25a6 a21 1 249m2 m27m7a 12b2b2 15a14x2y7xy 3a 8y39xy 9x3(xy) by yb xy9a9b 8a3b2 8ab a2b2 64y2x2 x8yx218xy81y2 x29xy 9x 3 x4x1 16x21 4x16x y7y 9x3a3b3 7ab5cd 6cda26a9 a3a25a6 a29 1 964m2 m28m5a 18b4b 17a24xy8x2y3 7b 8y7xy 5x6(xy

4、) by yb xy7a7b 2a3b 8ab a2b2 25y2x2 x5yx218xy81y2 x29xy 2x 1 x5x1 25x21 5x17x y8y2 2xab2 3a2b4c3 8cda24a4 a1a22a1 a24 1 236m2 m26m9a 20b6b 17a16xy7x2y 9a 4y32xy 7x8(xy) nx xn xy3a3b 10a3b 2ab a2b2 49y2x2 x7yx210xy25y2 x25xy 5x 5 x2x3 4x29 2x33x y24y2 8xa2b2 7a2b28c2d 8cda24a4 a3a24a3 a24 3 864m2 m28

5、m3a 10b8b 19a24xy4x2y3 5b 8y26xy 9x8(xy) nm mn xy7a7b 5a2b3 2ab a2b2 36y2x2 x6yx218xy81y2 x29xy 8x 9 x5x6 25x236 5x66x3 y37y 3xab3 5ab3c2d 4cda26a9 a1a23a2 a29 8 764m2 m28m5a 18b8b 13a6x3y6x2y 3a 2y8xy 7x9(xy) nm mn xy9a9b 6a2b 8ab a2b2 49y2x2 x7yx216xy64y2 x28xy 8x 3 x2x9 4x281 2x96x3 y7y 5x2ab 5ab

6、36cd 8c2da26a9 a2a25a6 a29 8 29m2 m23m7a 18b2b2 19a2x3y3x3y 9a 4y39xy 3x2(xy) ny yn xy9a9b 24a2b 8ab a2b2 9y2x2 x3yx214xy49y2 x27xy 7x 9 x2x6 4x236 2x67x3 y6y3 9xa2b2 5ab4c2 8cda26a9 a2a23a2 a29 2 816m2 m24m9a 18b2b3 11a10xy5xy 3b 2y3xy 3x7(xy) ny yn xy9a9b 22ab 6ab a2b2 36y2x2 x6yx218xy81y2 x29xy 4

7、x 7 x5x5 25x225 5x55x2 y6y 8x3a3b 5a2b4c 4c2da24a4 a2a24a4 a24 6 84m2 m22m7a 12b6b2 11a316x2y9xy2 3b 4y24xy 7x2(xy) by yb xy9a9b 28ab2 8ab a2b2 49y2x2 x7yx26xy9y2 x23xy 3x 9 x2x8 4x264 2x86x3 y5y 8x2a3b 9ab6c3d 2cda26a9 a3a26a9 a29 9 1100m2 m210m9a 18b2b 17a38xy4xy 5b 4y6xy 5x8(xy) nm mn xy5a5b 5a3b

8、3 4ab a2b2 16y2x2 x4yx212xy36y2 x26xy 2x 3 x2x7 4x249 2x72x2 y3y 7x2ab 9a2b33c3d 4c2da26a9 a3a25a6 a29 6 864m2 m28m3a 20b2b2 15a24xy9x3y3 9b 8y8xy 7x6(xy) nx xn xy7a7b 8ab 4ab a2b2 16y2x2 x4yx216xy64y2 x28xy 4x 6 x4x9 16x281 4x94x3 y33y3 2x2a3b2 5a2b8cd 4c2da26a9 a1a24a3 a29 4 89m2 m23m7a 16b4b 19a1

9、6x3y5x2y 7a 2y33xy 3x9(xy) ay ya xy9a9b 13ab 4ab a2b2 25y2x2 x5yx28xy16y2 x24xy 4x 4 x3x6 9x236 3x67x2 y6y 6x2ab2 3ab5c3d 8c2da24a4 a3a26a9 a24 8 681m2 m29m3a 16b6b 17a2x3y3x2y 5a 2y34xy 7x3(xy) am ma xy5a5b 16a3b 6ab a2b2 16y2x2 x4yx218xy81y2 x29xy 3x 4 x4x3 16x29 4x38x y27y 5x3ab 9ab33c2 6cda22a1

10、a1a22a1 a21 1 216m2 m24m3a 14b6b 19a6x3y3xy 7a 4y5xy 3x6(xy) bm mb xy9a9b 5a3b3 10ab a2b2 81y2x2 x9yx218xy81y2 x29xy 5x 7 x3x8 9x264 3x86x y5y3 6x3a3b3 5ab5c 2cda22a1 a2a25a6 a21 5 44m2 m22m3a 12b2b 11a34x3y4x2y3 7a 2y24xy 9x5(xy) ax xa xy5a5b 9a2b 10ab a2b2 16y2x2 x4yx214xy49y2 x27xy 2x 7 x4x7 16x2

11、49 4x75x y6y 7xab2 9ab36cd 2cda26a9 a1a23a2 a29 2 14m2 m22m3a 16b8b3 15a220xy9x2y 7a 2y4xy 9x9(xy) bx xb xy5a5b 19ab 2ab a2b2 25y2x2 x5yx24xy4y2 x22xy 3x 8 x5x2 25x24 5x27x2 y28y2 2x3a3b3 9a2b37c 8cda26a9 a1a22a1 a29 1 44m2 m22m7a 14b6b3 11a220xy4xy2 5a 4y8xy 3x8(xy) bm mb xy3a3b 19a2b 10ab a2b2 36y

12、2x2 x6yx212xy36y2 x26xy 3x 6 x2x6 4x236 2x64x y3y 6x2ab2 7a3b27c3d 8c3da24a4 a1a22a1 a24 3 749m2 m27m3a 20b8b 19a316x3y7x2y 7b 4y25xy 3x6(xy) am ma xy3a3b 8ab 8ab a2b2 49y2x2 x7yx214xy49y2 x27xy 3x 5 x4x5 16x225 4x59x2 y38y2 3xa2b2 9ab7c3d 8cda22a1 a1a24a3 a21 2 781m2 m29m7a 12b8b 15a26xy3xy 7b 8y5x

13、y 9x6(xy) ny yn xy3a3b 9a3b 6ab a2b2 4y2x2 x2yx212xy36y2 x26xy 2x 3 x5x4 25x216 5x46x y25y 8x3ab3 3a2b39c3 8cda26a9 a2a23a2 a29 4 34m2 m22m3a 10b8b 17a212xy3x2y 9b 4y3xy 9x5(xy) by yb xy9a9b 16ab3 8ab a2b2 36y2x2 x6yx26xy9y2 x23xy 2x 7 x3x4 9x216 3x44x y5y 9x3ab2 7ab23c3 2c2da22a1 a2a25a6 a21 3 381m

14、2 m29m3a 18b2b2 13a36x3y8xy 9a 8y9xy 5x5(xy) ay ya xy9a9b 30a3b 6ab a2b2 49y2x2 x7yx28xy16y2 x24xy 5x 6 x4x7 16x249 4x78x2 y37y3 2x3ab 3a3b35c2 6c2da22a1 a3a25a6 a21 3 125m2 m25m3a 16b2b2 15a18x3y9x3y 3b 2y23xy 3x9(xy) bm mb xy7a7b 17ab3 6ab a2b2 36y2x2 x6yx26xy9y2 x23xy 8x 8 x5x6 25x236 5x69x y8y3

15、8x3ab2 3a2b7c2d 6c2da26a9 a3a26a9 a29 4 716m2 m24m9a 18b8b 19a216x3y5x2y2 5b 4y2xy 9x3(xy) bm mb xy3a3b 27a2b 6ab a2b2 16y2x2 x4yx210xy25y2 x25xy 2x 5 x3x4 9x216 3x44x y35y3 4x2a2b3 7ab35cd 8c2da26a9 a2a24a4 a29 3 1100m2 m210m3a 16b8b 13a22xy4xy 9b 4y29xy 5x6(xy) am ma xy9a9b 21a3b3 4ab a2b2 16y2x2

16、x4yx214xy49y2 x27xy 8x 5 x4x5 16x225 4x54x3 y3y 7x2ab3 3ab28c 8c2da24a4 a1a22a1 a24 8 525m2 m25m7a 16b6b 13a220x3y4xy 3b 4y22xy 7x8(xy) ny yn xy5a5b 27ab2 2ab a2b2 16y2x2 x4yx210xy25y2 x25xy 2x 3 x5x3 25x29 5x37x y28y 8x2ab 5ab34c 8c3da22a1 a2a23a2 a21 2 64m2 m22m5a 18b2b3 19a316x2y6x3y3 7b 4y5xy 7x7(xy) nx xn xy5a5b 7ab2 10ab a2b2 9y2x2 x3yx216xy64y2 x28xy 6x 9 x3x9 9x281 3x96x2 y7y 2xa3b 5a3b4c 8cda24a4 a2a23a2 a24 6 516m2 m24m7a 10b4b 13a214x3y4x2y 5a 8y37xy