人教版八年级数学上册分式的乘除法练习题精选32.docx

1、人教版八年级数学上册分式的乘除法练习题精选32 16y2x2 x4yx218xy81y2 x29xy 9x 7 x4x5 16x225 4x54x3 y35y 8xa2b2 3a3b6c3 2c2da24a4 a2a25a6 a24 4 616m2 m24m9a 12b6b2 11a210x3y9xy 3a 8y9xy 9x9(xy) nm mn xy9a9b 29a2b 10ab a2b2 9y2x2 x3yx212xy36y2 x26xy 2x 9 x2x3 4x29 2x37x y6y 3x3ab3 3a2b37c3d 2cda24a4 a3a25a6 a24 8 236m2 m26m5

2、a 12b4b 17a6xy5xy 7a 6y6xy 3x7(xy) ny yn xy9a9b 15a2b2 2ab a2b2 64y2x2 x8yx216xy64y2 x28xy 9x 3 x3x6 9x236 3x69x2 y8y2 4xa3b2 9ab34c2 2c2da24a4 a1a22a1 a24 9 24m2 m22m7a 18b6b 17a2xy9x3y3 7b 4y32xy 3x9(xy) ax xa xy5a5b 22ab 8ab a2b2 25y2x2 x5yx24xy4y2 x22xy 2x 4 x3x4 9x216 3x45x y4y2 2x2a2b 9a2b25c

3、6c3da26a9 a1a23a2 a29 1 89m2 m23m5a 20b2b2 15a18x2y8xy 5b 6y37xy 9x9(xy) am ma xy7a7b 12a2b 4ab a2b2 64y2x2 x8yx28xy16y2 x24xy 9x 3 x2x5 4x225 2x55x y4y2 6xab2 3a3b8c2 4cda26a9 a3a26a9 a29 6 725m2 m25m3a 10b8b3 11a318x3y3x2y2 9b 2y2xy 5x9(xy) ax xa xy7a7b 22a2b3 4ab a2b2 81y2x2 x9yx210xy25y2 x25xy 4

4、x 7 x3x9 9x281 3x94x y5y3 5x3a3b3 7a2b5c3 2c2da24a4 a2a23a2 a24 5 64m2 m22m9a 18b8b 11a312xy4x3y 7b 4y9xy 7x5(xy) ax xa xy7a7b 28a3b 2ab a2b2 16y2x2 x4yx214xy49y2 x27xy 5x 6 x2x2 4x24 2x23x2 y34y3 3x3ab2 3ab9cd 6cda24a4 a2a25a6 a24 4 316m2 m24m7a 10b6b 13a6xy2x3y2 3b 6y7xy 3x3(xy) by yb xy3a3b 28ab

5、6ab a2b2 81y2x2 x9yx214xy49y2 x27xy 7x 5 x4x5 16x225 4x55x3 y34y3 8x3a3b 5a3b4c 8cda26a9 a3a25a6 a29 9 64m2 m22m3a 18b2b2 15a216xy9x3y2 9a 8y36xy 9x4(xy) ax xa xy9a9b 17a2b2 6ab a2b2 4y2x2 x2yx210xy25y2 x25xy 4x 8 x4x8 16x264 4x88x3 y7y 9xa3b 9a3b9c2d 4cda24a4 a2a23a2 a24 1 14m2 m22m7a 16b8b 13a38x2

6、y7x3y 7b 8y3xy 9x9(xy) by yb xy9a9b 30ab3 10ab a2b2 9y2x2 x3yx28xy16y2 x24xy 6x 9 x2x4 4x216 2x47x y6y 2x3a2b 5ab7c 6c2da26a9 a3a26a9 a29 6 84m2 m22m5a 16b8b2 11a218x2y7x3y3 9a 4y3xy 7x6(xy) bx xb xy3a3b 12a2b2 2ab a2b2 81y2x2 x9yx214xy49y2 x27xy 5x 7 x3x2 9x24 3x25x y26y 2xa3b3 7a3b23c 6c3da24a4 a3

7、a24a3 a24 5 925m2 m25m7a 10b8b3 13a12xy6x2y2 3b 6y3xy 3x6(xy) bx xb xy5a5b 22a2b 8ab a2b2 4y2x2 x2yx212xy36y2 x26xy 8x 9 x4x9 16x281 4x93x3 y24y 7xab 7a2b32c2 8cda26a9 a2a25a6 a29 2 8100m2 m210m7a 14b8b3 19a8xy8x3y2 5a 2y32xy 3x8(xy) nx xn xy7a7b 19a2b2 2ab a2b2 49y2x2 x7yx210xy25y2 x25xy 6x 3 x2x2

8、4x24 2x25x3 y34y 5xab3 7a2b29c3 4c2da26a9 a3a24a3 a29 2 936m2 m26m3a 10b4b 17a10xy5x2y 3b 4y9xy 9x6(xy) by yb xy3a3b 8a3b3 6ab a2b2 64y2x2 x8yx210xy25y2 x25xy 2x 9 x4x8 16x264 4x84x y25y 2xab 7ab32cd 2cda24a4 a1a22a1 a24 6 916m2 m24m9a 12b6b2 13a16xy6xy 7b 4y5xy 7x2(xy) nx xn xy5a5b 26ab2 6ab a2b2 1

9、6y2x2 x4yx28xy16y2 x24xy 5x 3 x4x1 16x21 4x15x3 y24y 3xa2b2 7a3b2c2d 8c3da24a4 a3a24a3 a24 1 5100m2 m210m7a 16b2b 19a218xy8xy 7b 8y4xy 9x7(xy) by yb xy7a7b 6a3b 6ab a2b2 16y2x2 x4yx214xy49y2 x27xy 2x 4 x3x2 9x24 3x22x2 y23y 4x3ab 3ab35c3d 4cda22a1 a1a22a1 a21 5 836m2 m26m3a 14b2b3 19a18xy7x2y 9a 6y9

10、xy 5x6(xy) nm mn xy5a5b 25a2b 2ab a2b2 81y2x2 x9yx28xy16y2 x24xy 4x 6 x3x2 9x24 3x23x3 y34y3 8xa2b 9a3b3c 6cda26a9 a2a25a6 a29 5 549m2 m27m7a 20b8b2 19a312x3y7xy3 3a 4y4xy 3x7(xy) ax xa xy5a5b 25a2b2 8ab a2b2 81y2x2 x9yx24xy4y2 x22xy 9x 9 x3x6 9x236 3x62x3 y33y3 3x3a2b 7ab23c2 4c2da24a4 a3a25a6 a24

11、4 2100m2 m210m9a 10b8b 15a4xy8x2y 3a 4y23xy 3x2(xy) by yb xy3a3b 21a3b3 2ab a2b2 4y2x2 x2yx28xy16y2 x24xy 5x 8 x3x4 9x216 3x46x2 y5y 3x2ab 3ab23c3 2cda22a1 a1a22a1 a21 5 381m2 m29m9a 10b6b 13a2xy5x2y2 5a 8y6xy 5x5(xy) by yb xy9a9b 4ab2 2ab a2b2 81y2x2 x9yx210xy25y2 x25xy 4x 2 x3x5 9x225 3x54x y33y2

12、2xa2b 9a2b2c2 4cda26a9 a2a25a6 a29 7 825m2 m25m5a 18b6b 17a314xy7xy3 9b 4y29xy 9x6(xy) nx xn xy5a5b 27ab 10ab a2b2 16y2x2 x4yx216xy64y2 x28xy 3x 1 x5x2 25x24 5x27x3 y6y 7xa2b3 9ab6c2 6c2da22a1 a1a22a1 a21 8 616m2 m24m9a 10b8b 11a8xy3xy3 9b 6y35xy 5x8(xy) bx xb xy5a5b 8ab 6ab a2b2 49y2x2 x7yx24xy4y2

13、x22xy 8x 7 x3x3 9x29 3x35x y34y3 7xab 3ab2c3d 8cda24a4 a1a22a1 a24 5 725m2 m25m7a 10b6b 11a18xy6xy2 9a 2y2xy 5x9(xy) by yb xy5a5b 26a3b 2ab a2b2 25y2x2 x5yx28xy16y2 x24xy 7x 6 x2x4 4x216 2x42x3 y23y3 7xa3b2 3ab5c3d 6cda22a1 a2a23a2 a21 3 649m2 m27m5a 12b6b 11a10xy6x3y 5a 6y28xy 5x3(xy) bx xb xy5a5b

14、12a2b3 10ab a2b2 81y2x2 x9yx24xy4y2 x22xy 9x 2 x2x7 4x249 2x75x3 y24y3 4x3ab 7a3b25cd 2c2da24a4 a2a25a6 a24 8 264m2 m28m9a 18b4b 17a4x3y8x2y2 7b 4y4xy 3x9(xy) nx xn xy5a5b 6ab 6ab a2b2 16y2x2 x4yx216xy64y2 x28xy 8x 5 x5x1 25x21 5x19x3 y8y 3xab3 7a3b28c 2cda22a1 a3a25a6 a21 3 925m2 m25m7a 12b6b 11a4x

15、2y8xy 5a 4y35xy 5x6(xy) ax xa xy9a9b 21a3b 4ab a2b2 81y2x2 x9yx24xy4y2 x22xy 5x 6 x5x1 25x21 5x16x2 y27y 7x2a3b 5ab36cd 8cda24a4 a3a24a3 a24 3 425m2 m25m5a 16b2b 15a310x3y7xy 9a 2y38xy 5x8(xy) nm mn xy9a9b 21a2b3 8ab a2b2 36y2x2 x6yx26xy9y2 x23xy 8x 3 x3x7 9x249 3x73x2 y34y2 2xa3b 5ab27c 6c2da22a1 a

16、2a24a4 a21 4 9100m2 m210m5a 20b6b3 11a212xy6x3y3 9b 2y6xy 5x9(xy) nm mn xy5a5b 10a3b3 10ab a2b2 25y2x2 x5yx214xy49y2 x27xy 8x 5 x2x9 4x281 2x97x y26y 9xab2 3a2b2cd 8c2da26a9 a1a24a3 a29 2 69m2 m23m9a 14b4b 11a14xy5xy 7b 2y3xy 5x4(xy) am ma xy7a7b 4ab2 8ab a2b2 4y2x2 x2yx212xy36y2 x26xy 3x 3 x3x3 9x29 3x36x3 y7y2 2x3ab3 5ab27c2d 6c2da22a1 a1a24a3 a21 7 581m2 m29m7a 18b8b 11a20x2y9x3y 5b 8y9xy 7x2(xy) nm mn xy5a5b 26ab3 8ab a2b2 49y2x2 x7yx210xy25y2 x25xy