人教版八年级数学上册分式的乘除法练习题精选37.docx

1、人教版八年级数学上册分式的乘除法练习题精选37 3 79m2 m23m9a 18b2b2 13a2xy8xy 9b 8y32xy 3x7(xy) by yb xy3a3b 3a3b 4ab a2b2 49y2x2 x7yx216xy64y2 x28xy 7x 9 x5x8 25x264 5x86x y25y 6x3ab 7a2b24c3d 2cda26a9 a1a23a2 a29 1 39m2 m23m5a 12b6b3 15a22x2y7x3y 3a 8y3xy 3x6(xy) bx xb xy7a7b 4ab 6ab a2b2 36y2x2 x6yx24xy4y2 x22xy 4x 6 x

2、4x7 16x249 4x78x2 y7y2 2xa3b 9a3b6c3d 2cda22a1 a1a23a2 a21 9 54m2 m22m9a 16b8b3 15a24x3y5xy 7a 2y28xy 9x9(xy) ny yn xy3a3b 12ab2 4ab a2b2 49y2x2 x7yx26xy9y2 x23xy 8x 5 x5x2 25x24 5x29x y28y 4xab2 7ab2c 6c3da26a9 a3a24a3 a29 8 981m2 m29m5a 12b6b 11a316x2y9xy 5b 8y39xy 7x5(xy) ax xa xy3a3b 6ab 10ab a2

3、b2 64y2x2 x8yx212xy36y2 x26xy 9x 4 x3x3 9x29 3x38x y37y3 3x3ab 9ab2c2 6cda22a1 a3a24a3 a21 2 549m2 m27m9a 18b2b 17a4x2y9x2y3 7a 8y9xy 9x4(xy) by yb xy9a9b 11ab 10ab a2b2 9y2x2 x3yx218xy81y2 x29xy 3x 3 x5x3 25x29 5x38x y37y 3x3a3b 7ab7c2d 4cda26a9 a2a24a4 a29 9 581m2 m29m7a 20b4b 17a8xy6xy 7a 6y6xy 9

4、x8(xy) am ma xy5a5b 4a3b3 4ab a2b2 25y2x2 x5yx216xy64y2 x28xy 2x 2 x4x6 16x236 4x68x y27y3 8x2ab 3a2b36cd 2c2da22a1 a1a22a1 a21 7 549m2 m27m3a 10b8b 17a14x2y8x2y2 7a 6y7xy 7x2(xy) ax xa xy3a3b 3a2b 4ab a2b2 9y2x2 x3yx212xy36y2 x26xy 6x 9 x4x2 16x24 4x25x3 y36y2 9xa3b 3a2b32c2d 8cda26a9 a2a25a6 a29 7

5、 936m2 m26m5a 16b8b3 11a6x3y7x2y2 7a 4y25xy 3x9(xy) ay ya xy3a3b 18a2b3 2ab a2b2 81y2x2 x9yx212xy36y2 x26xy 2x 1 x3x6 9x236 3x69x y38y3 8xab 7ab22c3d 8cda24a4 a1a22a1 a24 2 5100m2 m210m9a 14b4b 13a218x3y2xy 7a 2y2xy 9x3(xy) nx xn xy7a7b 20ab 10ab a2b2 36y2x2 x6yx218xy81y2 x29xy 8x 4 x3x7 9x249 3x75x

6、 y6y3 7xa2b 5ab3cd 2cda22a1 a3a24a3 a21 7 681m2 m29m7a 12b2b3 17a26xy7x3y 7a 6y8xy 3x5(xy) am ma xy5a5b 6ab 2ab a2b2 9y2x2 x3yx218xy81y2 x29xy 5x 5 x5x1 25x21 5x17x2 y8y2 2xa2b2 9ab4c 4cda24a4 a1a22a1 a24 6 69m2 m23m9a 16b2b 11a14xy4xy2 3a 8y22xy 5x2(xy) by yb xy7a7b 15a3b2 6ab a2b2 16y2x2 x4yx210xy

7、25y2 x25xy 5x 5 x3x1 9x21 3x17x y28y3 6xa2b2 3a2b24c2d 8cda22a1 a2a25a6 a21 5 74m2 m22m9a 10b4b3 19a36x3y3x2y 9a 4y5xy 7x6(xy) nx xn xy9a9b 27ab 6ab a2b2 81y2x2 x9yx26xy9y2 x23xy 2x 9 x3x7 9x249 3x74x3 y3y 4x2a2b 3ab38c2d 4cda22a1 a3a26a9 a21 5 316m2 m24m3a 16b6b2 19a10x2y7x2y3 3a 6y7xy 5x3(xy) bm m

8、b xy9a9b 9a3b3 2ab a2b2 49y2x2 x7yx28xy16y2 x24xy 6x 1 x3x1 9x21 3x15x2 y4y 4xab3 5a3b29c2d 8c2da22a1 a1a23a2 a21 4 149m2 m27m9a 20b8b 19a12xy9xy3 7a 4y4xy 5x3(xy) ay ya xy5a5b 26ab2 6ab a2b2 36y2x2 x6yx24xy4y2 x22xy 9x 7 x5x6 25x236 5x66x2 y35y3 9x3ab2 7ab7c2d 4cda24a4 a1a23a2 a24 5 136m2 m26m5a 10

9、b8b 17a18xy2x2y2 3a 2y5xy 9x8(xy) by yb xy3a3b 8a2b3 2ab a2b2 36y2x2 x6yx218xy81y2 x29xy 9x 9 x5x3 25x29 5x36x3 y27y 5x3a2b2 3ab32c3d 4c3da26a9 a1a22a1 a29 3 64m2 m22m3a 16b6b 11a14x3y5x2y 7b 4y4xy 9x5(xy) nm mn xy9a9b 28ab 4ab a2b2 49y2x2 x7yx28xy16y2 x24xy 6x 6 x5x3 25x29 5x34x y3y 3x3ab2 5ab34c2d

10、 6cda26a9 a2a23a2 a29 4 164m2 m28m9a 14b6b2 19a212xy3x2y 3b 6y3xy 3x2(xy) bx xb xy7a7b 19a3b 4ab a2b2 9y2x2 x3yx24xy4y2 x22xy 2x 1 x3x4 9x216 3x48x3 y27y3 2xab 7ab32c 8c3da24a4 a1a22a1 a24 2 549m2 m27m3a 16b6b3 13a28x2y2x3y2 9a 2y9xy 9x2(xy) ay ya xy5a5b 27a3b2 6ab a2b2 4y2x2 x2yx26xy9y2 x23xy 6x 2

11、x2x4 4x216 2x43x y34y 6xab2 9a2b28c2 8cda22a1 a3a25a6 a21 4 49m2 m23m5a 14b6b3 13a34x3y3x2y3 7a 8y3xy 9x2(xy) nm mn xy7a7b 6a2b3 6ab a2b2 16y2x2 x4yx24xy4y2 x22xy 8x 8 x3x7 9x249 3x77x2 y6y 8x2a3b 9a3b3cd 4c2da26a9 a1a23a2 a29 9 8100m2 m210m5a 12b4b 15a2x3y2x3y 5b 4y3xy 5x7(xy) bm mb xy9a9b 13ab3 2a

12、b a2b2 36y2x2 x6yx24xy4y2 x22xy 9x 3 x5x4 25x216 5x48x3 y27y3 8xa3b 9ab36cd 8cda26a9 a1a24a3 a29 6 916m2 m24m5a 14b2b 15a320x3y6xy 9b 8y34xy 3x9(xy) ny yn xy7a7b 5ab 8ab a2b2 25y2x2 x5yx26xy9y2 x23xy 5x 7 x2x8 4x264 2x84x y3y3 3xa2b 5a2b33c 8cda26a9 a2a23a2 a29 6 64m2 m22m3a 12b6b3 13a318xy6xy 5b 6y

13、32xy 9x5(xy) am ma xy5a5b 18ab 2ab a2b2 16y2x2 x4yx24xy4y2 x22xy 5x 4 x5x5 25x225 5x58x3 y27y 8x3a2b 9a3b6c 8cda26a9 a2a24a4 a29 4 14m2 m22m5a 12b6b 11a2xy9xy3 3b 2y34xy 7x8(xy) by yb xy9a9b 12ab 6ab a2b2 25y2x2 x5yx216xy64y2 x28xy 5x 7 x5x3 25x29 5x33x2 y4y 5xab3 3a3b8c 2c3da24a4 a2a25a6 a24 2 436m

14、2 m26m3a 18b8b 17a28xy6xy 3b 2y34xy 5x4(xy) nm mn xy7a7b 12ab3 6ab a2b2 25y2x2 x5yx218xy81y2 x29xy 8x 9 x5x1 25x21 5x15x2 y6y 6xa2b 7a3b3c3d 2c3da22a1 a3a26a9 a21 7 936m2 m26m5a 14b4b2 17a16xy7x3y 3a 4y4xy 7x9(xy) nx xn xy7a7b 27ab 8ab a2b2 4y2x2 x2yx26xy9y2 x23xy 5x 2 x5x3 25x29 5x35x y6y 4x2a2b 5a

15、b37c3 4cda24a4 a3a26a9 a24 4 281m2 m29m5a 14b4b 15a320x2y6x3y 5a 4y8xy 9x4(xy) nx xn xy7a7b 27a3b3 6ab a2b2 81y2x2 x9yx212xy36y2 x26xy 5x 7 x4x3 16x29 4x33x y34y3 6x2a2b 9ab38c3d 2cda26a9 a3a26a9 a29 4 181m2 m29m5a 18b4b 17a210x3y2x2y 3b 4y8xy 9x5(xy) ny yn xy3a3b 17a2b3 4ab a2b2 4y2x2 x2yx24xy4y2 x

16、22xy 3x 9 x5x4 25x216 5x43x y34y3 9x3a2b3 3a3b2c2d 8cda24a4 a2a25a6 a24 9 964m2 m28m9a 18b8b2 17a18xy3xy 7b 2y6xy 9x2(xy) ax xa xy3a3b 28a3b 6ab a2b2 25y2x2 x5yx218xy81y2 x29xy 6x 2 x3x8 9x264 3x89x3 y8y 9xab3 9ab24c2 8cda22a1 a2a23a2 a21 5 84m2 m22m3a 16b4b2 11a28xy2x3y 9b 2y5xy 5x5(xy) ax xa xy5a5b 23a2b 10ab a2b2 36y2x2 x6yx214xy49y2 x27xy 6x 3 x5x1 25x21 5x15x2 y4y 6xa3b 7ab9cd 6cda26a9 a2a23a2 a29 9 749m2 m27m