人教版初二数学上册分式的乘除法练习题精选2.docx

1、人教版初二数学上册分式的乘除法练习题精选210xy6xy2 3b 4y3xy 3x5(xy) ny yn xy5a5b 8a3b2 2ab a2b2 4y2x2 x2yx26xy9y2 x23xy 9x 3 x4x9 16x281 4x99x y38y 9xab2 7ab2cd 4cda22a1 a2a25a6 a21 5 325m2 m25m9a 14b2b3 15a32xy9xy 7a 6y39xy 7x4(xy) ax xa xy9a9b 5ab 2ab a2b2 81y2x2 x9yx24xy4y2 x22xy 9x 4 x4x5 16x225 4x57x y26y2 7x2a2b2

2、3ab7cd 8cda24a4 a3a26a9 a24 1 149m2 m27m3a 12b4b 11a216x2y8x2y2 5b 2y9xy 5x9(xy) ay ya xy9a9b 9a3b2 10ab a2b2 9y2x2 x3yx214xy49y2 x27xy 5x 3 x2x9 4x281 2x97x3 y38y 9xa3b3 9a3b28c2 4cda26a9 a1a23a2 a29 2 649m2 m27m7a 20b2b2 19a214x2y8x3y2 9a 6y36xy 3x2(xy) ax xa xy7a7b 27a3b 6ab a2b2 49y2x2 x7yx218xy

3、81y2 x29xy 6x 5 x5x5 25x225 5x55x2 y4y 9x2ab3 3ab29c3 6c2da24a4 a2a23a2 a24 4 49m2 m23m9a 16b4b2 13a220xy3x3y3 9b 6y39xy 5x7(xy) bm mb xy3a3b 20ab2 2ab a2b2 49y2x2 x7yx216xy64y2 x28xy 7x 5 x3x4 9x216 3x47x y26y3 5x3a3b3 5a3b28c3 6cda22a1 a3a26a9 a21 5 149m2 m27m9a 10b2b 19a26x3y8xy 3a 8y23xy 3x3(xy)

4、 ax xa xy5a5b 10a2b 4ab a2b2 16y2x2 x4yx214xy49y2 x27xy 5x 8 x2x9 4x281 2x94x2 y3y 8xab2 5a2b4c 8cda22a1 a1a23a2 a21 7 881m2 m29m3a 18b8b2 11a24x2y5x3y 7b 6y39xy 5x4(xy) nm mn xy7a7b 18a2b2 8ab a2b2 16y2x2 x4yx214xy49y2 x27xy 5x 4 x2x2 4x24 2x22x3 y3y 9x3a3b 7a2b28c2 8c3da22a1 a1a24a3 a21 6 74m2 m22

5、m3a 20b8b 17a220x2y4xy 3a 6y29xy 7x5(xy) am ma xy7a7b 13a2b3 10ab a2b2 9y2x2 x3yx24xy4y2 x22xy 6x 3 x3x8 9x264 3x88x2 y7y 7x3a3b2 7a3b7c3 6c3da22a1 a2a23a2 a21 9 716m2 m24m5a 16b4b 19a216x2y6x3y 9a 2y27xy 7x4(xy) by yb xy9a9b 24ab2 10ab a2b2 36y2x2 x6yx26xy9y2 x23xy 7x 4 x5x7 25x249 5x74x y33y 6xa2b

6、 7a2b22c2d 6c3da22a1 a3a25a6 a21 3 436m2 m26m5a 16b6b 17a10xy2x3y2 5a 4y38xy 7x2(xy) ax xa xy7a7b 4ab 8ab a2b2 16y2x2 x4yx216xy64y2 x28xy 3x 5 x5x9 25x281 5x93x y34y 7xa2b3 7a2b34c3d 6c3da26a9 a1a24a3 a29 9 325m2 m25m9a 10b8b 17a310xy4x3y 3b 4y38xy 5x2(xy) bm mb xy3a3b 30ab2 6ab a2b2 81y2x2 x9yx216x

7、y64y2 x28xy 4x 9 x2x3 4x29 2x39x y38y 9xab 5a3b32c2 2cda24a4 a1a24a3 a24 1 481m2 m29m9a 20b6b2 13a318xy5xy2 5a 8y29xy 5x6(xy) nm mn xy9a9b 23a3b2 4ab a2b2 4y2x2 x2yx218xy81y2 x29xy 5x 2 x5x6 25x236 5x64x y25y2 5x3ab2 3ab3c 2cda22a1 a3a25a6 a21 9 949m2 m27m9a 18b2b2 11a314x2y7xy 9b 2y33xy 9x2(xy) bx

8、xb xy5a5b 21ab3 8ab a2b2 81y2x2 x9yx210xy25y2 x25xy 2x 4 x3x8 9x264 3x88x2 y27y2 4x2ab2 7ab32cd 4cda22a1 a1a24a3 a21 7 2100m2 m210m7a 12b4b 19a18xy4xy 5b 2y3xy 5x8(xy) bx xb xy7a7b 5a3b 6ab a2b2 16y2x2 x4yx26xy9y2 x23xy 9x 3 x2x2 4x24 2x24x3 y3y 6xa2b 3ab33cd 2c3da26a9 a3a26a9 a29 6 54m2 m22m9a 14b6

9、b 19a28xy7xy2 5a 8y9xy 9x4(xy) nx xn xy9a9b 12a2b3 6ab a2b2 49y2x2 x7yx28xy16y2 x24xy 2x 2 x5x9 25x281 5x96x y25y 6xab 7ab26c2d 4c2da24a4 a1a22a1 a24 2 136m2 m26m5a 14b6b3 19a28xy2xy 9a 2y8xy 5x8(xy) by yb xy5a5b 15ab3 10ab a2b2 16y2x2 x4yx28xy16y2 x24xy 5x 9 x4x1 16x21 4x15x y6y2 8xa3b3 3ab24c3 4cd

10、a26a9 a1a24a3 a29 1 749m2 m27m9a 12b6b2 11a28x2y6x3y3 5b 8y7xy 9x5(xy) bm mb xy3a3b 9ab 8ab a2b2 36y2x2 x6yx24xy4y2 x22xy 4x 6 x4x1 16x21 4x14x3 y35y2 6x2a2b 3ab4cd 8cda24a4 a2a24a4 a24 9 864m2 m28m9a 16b6b2 15a6x3y2x2y 3b 4y35xy 7x5(xy) bm mb xy9a9b 2ab 2ab a2b2 64y2x2 x8yx26xy9y2 x23xy 4x 9 x4x5 1

11、6x225 4x52x y23y 5x2a2b 5a2b26c2d 4cda22a1 a2a24a4 a21 1 536m2 m26m3a 18b4b 17a16x2y2x3y2 3a 4y4xy 9x2(xy) am ma xy9a9b 7ab3 6ab a2b2 4y2x2 x2yx26xy9y2 x23xy 5x 2 x4x5 16x225 4x57x y6y2 5x3ab3 5ab3c 6cda22a1 a2a23a2 a21 5 84m2 m22m3a 16b6b2 13a310x3y3xy2 9a 4y23xy 3x6(xy) ay ya xy5a5b 27a3b 6ab a2b2

12、 81y2x2 x9yx212xy36y2 x26xy 7x 3 x4x6 16x236 4x65x2 y36y 8xab 7a2b2c2 2c2da22a1 a3a25a6 a21 8 14m2 m22m3a 14b2b2 15a26x3y2x2y 9b 2y7xy 9x4(xy) nx xn xy3a3b 19a3b3 2ab a2b2 81y2x2 x9yx218xy81y2 x29xy 9x 6 x4x1 16x21 4x15x3 y24y 3xa3b 9a2b35c3d 4c2da22a1 a3a26a9 a21 2 916m2 m24m7a 20b8b 15a26xy5xy 9a

13、4y8xy 7x5(xy) ny yn xy7a7b 13a3b2 4ab a2b2 36y2x2 x6yx212xy36y2 x26xy 4x 1 x2x3 4x29 2x38x y27y 6xab3 7a2b8c3 6cda22a1 a2a24a4 a21 9 925m2 m25m5a 10b4b 13a4xy7x3y 9a 6y8xy 5x5(xy) ny yn xy3a3b 2a3b 6ab a2b2 64y2x2 x8yx214xy49y2 x27xy 9x 9 x5x3 25x29 5x39x y38y3 7x2ab 7a2b38c3d 6c3da26a9 a1a24a3 a29

14、8 825m2 m25m3a 18b6b 17a38x2y6x3y 5b 8y7xy 3x9(xy) bx xb xy3a3b 14ab 4ab a2b2 4y2x2 x2yx216xy64y2 x28xy 9x 6 x5x6 25x236 5x65x2 y4y3 9xab2 3a3b8c2d 6c3da24a4 a2a23a2 a24 3 89m2 m23m5a 14b6b3 13a8xy2x3y 3b 4y5xy 5x2(xy) nx xn xy9a9b 24ab2 10ab a2b2 4y2x2 x2yx212xy36y2 x26xy 3x 3 x3x8 9x264 3x83x y34y

15、 2xa3b3 3ab5c 8c2da22a1 a3a25a6 a21 4 44m2 m22m5a 20b4b3 13a8xy7xy 5a 2y8xy 5x7(xy) am ma xy7a7b 23a3b3 8ab a2b2 16y2x2 x4yx210xy25y2 x25xy 7x 7 x5x2 25x24 5x27x3 y6y3 3x2ab2 9a2b29cd 8c2da24a4 a2a24a4 a24 3 99m2 m23m3a 18b4b2 17a2x3y5x2y3 5b 6y26xy 5x6(xy) nm mn xy3a3b 9ab 8ab a2b2 4y2x2 x2yx218xy8

16、1y2 x29xy 2x 9 x4x4 16x216 4x42x y3y3 2x2a2b 3ab7c2d 2cda22a1 a1a22a1 a21 5 59m2 m23m3a 14b8b 17a12x2y4xy2 3b 2y26xy 9x9(xy) nx xn xy9a9b 19a3b3 8ab a2b2 36y2x2 x6yx24xy4y2 x22xy 3x 2 x4x3 16x29 4x33x3 y24y 3xab3 7ab24c2d 6cda26a9 a3a25a6 a29 3 764m2 m28m9a 10b4b3 17a8x2y6x3y3 9b 8y22xy 7x6(xy) by yb xy3a3b 21a2b 2ab a2b2 49y2x2 x7yx28xy16y2 x24xy 9x 5 x4x9 16x281 4x95x2 y6y2 7xab3 3ab5c2d 4c2da26a9 a2a25a6 a29 3 425m2 m25m3a 20b6b3 19a214xy3xy2 3a 4y3xy 3x9