人教版初二数学上册分式的乘除法练习题精选31.docx

1、人教版初二数学上册分式的乘除法练习题精选314(xy) am ma xy5a5b 15ab 4ab a2b2 4y2x2 x2yx218xy81y2 x29xy 6x 8 x2x9 4x281 2x93x y4y 7xa2b2 5a3b39cd 2cda26a9 a3a24a3 a29 4 764m2 m28m5a 12b2b2 19a6x3y9xy 7a 2y9xy 5x6(xy) nx xn xy3a3b 3ab2 6ab a2b2 4y2x2 x2yx24xy4y2 x22xy 5x 3 x3x1 9x21 3x18x y27y3 8x2ab 5a3b9c3 8c2da24a4 a3a2

2、6a9 a24 3 816m2 m24m3a 14b6b 17a10x3y9x3y 3a 2y33xy 9x7(xy) am ma xy3a3b 16a2b3 8ab a2b2 25y2x2 x5yx210xy25y2 x25xy 4x 1 x2x9 4x281 2x96x2 y7y 7x2a3b3 9a3b4c3 2c3da22a1 a1a24a3 a21 4 9100m2 m210m7a 20b4b3 19a320x2y9x3y 7b 8y3xy 3x7(xy) ay ya xy9a9b 15a3b 6ab a2b2 36y2x2 x6yx212xy36y2 x26xy 8x 5 x2x4

3、 4x216 2x48x3 y37y2 7xab2 7ab9c 6c3da24a4 a2a24a4 a24 6 425m2 m25m5a 20b8b 19a20x2y5x3y3 5a 2y3xy 7x5(xy) ay ya xy9a9b 20a2b 6ab a2b2 9y2x2 x3yx24xy4y2 x22xy 5x 3 x3x7 9x249 3x74x2 y5y 4xa2b2 7a2b35c 6c2da22a1 a2a25a6 a21 5 74m2 m22m5a 12b8b 17a318x2y9xy2 5b 8y25xy 3x4(xy) nx xn xy7a7b 17ab 10ab a2b

4、2 64y2x2 x8yx26xy9y2 x23xy 2x 2 x2x8 4x264 2x84x2 y25y2 9xa3b3 7ab7c 4cda26a9 a2a25a6 a29 8 149m2 m27m9a 18b2b2 15a18x2y8xy 9a 4y34xy 7x7(xy) nm mn xy9a9b 12a3b 2ab a2b2 16y2x2 x4yx218xy81y2 x29xy 9x 1 x4x7 16x249 4x76x y35y 9xa2b 9a3b2cd 4c2da24a4 a2a25a6 a24 9 525m2 m25m3a 10b6b 17a316x3y2x2y2 3a

5、6y4xy 5x3(xy) am ma xy5a5b 3a2b 8ab a2b2 4y2x2 x2yx214xy49y2 x27xy 9x 7 x2x9 4x281 2x94x y3y 3xab 7ab33cd 4c2da22a1 a1a22a1 a21 4 4100m2 m210m5a 12b2b3 15a32xy3x2y2 7b 8y33xy 5x2(xy) ax xa xy5a5b 10ab2 8ab a2b2 49y2x2 x7yx210xy25y2 x25xy 9x 4 x3x8 9x264 3x86x y7y3 8x2ab 5a2b6c3 6c3da22a1 a3a26a9 a21

6、 3 249m2 m27m3a 18b4b2 19a32x3y5xy 9a 2y38xy 9x5(xy) bx xb xy3a3b 18ab3 6ab a2b2 16y2x2 x4yx24xy4y2 x22xy 3x 9 x4x4 16x216 4x47x y6y3 9x2ab 9a2b2cd 8c2da24a4 a3a25a6 a24 8 525m2 m25m3a 10b2b 19a8x2y3xy2 9a 4y3xy 9x9(xy) nx xn xy9a9b 2ab 10ab a2b2 9y2x2 x3yx218xy81y2 x29xy 4x 4 x3x8 9x264 3x84x y35y

7、3xab 7a2b9c3 4cda22a1 a1a24a3 a21 9 416m2 m24m9a 10b2b3 15a2xy2xy 3b 6y8xy 7x9(xy) ay ya xy5a5b 22ab2 4ab a2b2 16y2x2 x4yx216xy64y2 x28xy 7x 7 x5x4 25x216 5x45x y36y 5xa3b2 7a3b2c2d 8c2da22a1 a2a23a2 a21 7 264m2 m28m9a 10b2b 13a12xy7xy 9b 8y7xy 7x9(xy) am ma xy7a7b 12ab2 4ab a2b2 9y2x2 x3yx210xy25y2

8、 x25xy 7x 7 x2x2 4x24 2x27x y6y 9xa3b2 5a2b25c 8cda24a4 a3a25a6 a24 2 181m2 m29m5a 14b2b 19a16xy5x3y3 5b 4y34xy 7x8(xy) ax xa xy5a5b 12a2b2 6ab a2b2 36y2x2 x6yx24xy4y2 x22xy 5x 6 x2x1 4x21 2x15x y34y 9xa2b2 5a3b7c 8c3da22a1 a2a25a6 a21 5 125m2 m25m3a 10b6b 17a2xy8x3y3 5b 2y26xy 7x8(xy) nx xn xy9a9b

9、11a3b3 2ab a2b2 36y2x2 x6yx218xy81y2 x29xy 2x 3 x3x1 9x21 3x13x3 y4y3 8xab 7a3b36c2d 4c3da26a9 a2a25a6 a29 6 625m2 m25m3a 20b2b 19a214x2y3x2y3 3a 6y33xy 5x9(xy) bm mb xy5a5b 24ab 2ab a2b2 16y2x2 x4yx216xy64y2 x28xy 9x 7 x4x7 16x249 4x76x3 y5y 8xa3b3 3ab29c 4c2da24a4 a3a24a3 a24 9 681m2 m29m3a 16b2b3

10、 11a312xy7xy 3a 6y5xy 3x3(xy) am ma xy9a9b 7ab2 4ab a2b2 81y2x2 x9yx212xy36y2 x26xy 5x 9 x2x6 4x236 2x64x y5y 5x3ab3 9ab5c3d 4cda24a4 a3a25a6 a24 7 29m2 m23m5a 20b6b2 15a214xy8xy 5b 6y8xy 3x6(xy) by yb xy3a3b 26a2b 10ab a2b2 16y2x2 x4yx218xy81y2 x29xy 5x 2 x4x5 16x225 4x56x y25y 3xab3 3ab25c3 4c2da2

11、4a4 a1a23a2 a24 3 84m2 m22m3a 14b2b 13a314x3y3xy3 7a 2y6xy 7x4(xy) ax xa xy9a9b 20a2b2 4ab a2b2 25y2x2 x5yx26xy9y2 x23xy 7x 5 x5x1 25x21 5x15x3 y6y2 6x2ab3 3ab37c3 8cda24a4 a1a22a1 a24 1 94m2 m22m9a 16b6b 13a216xy9xy2 5b 4y5xy 3x7(xy) ny yn xy5a5b 12a3b2 2ab a2b2 81y2x2 x9yx24xy4y2 x22xy 4x 4 x3x3 9

12、x29 3x35x y4y3 6xa2b 7ab35c2d 4c2da26a9 a1a23a2 a29 2 649m2 m27m9a 20b8b3 17a310x3y5xy 7b 2y24xy 7x9(xy) ny yn xy3a3b 23a3b2 2ab a2b2 9y2x2 x3yx26xy9y2 x23xy 6x 5 x2x6 4x236 2x66x y5y 8xab2 9ab5c 2cda22a1 a2a23a2 a21 4 764m2 m28m7a 16b8b 11a318xy5xy 7b 8y7xy 7x8(xy) by yb xy5a5b 28a3b 10ab a2b2 49y2

13、x2 x7yx26xy9y2 x23xy 6x 5 x5x7 25x249 5x77x y28y 9xa2b2 3a3b32c2d 6cda22a1 a3a25a6 a21 7 781m2 m29m3a 16b4b 11a12xy6xy 9b 4y25xy 3x3(xy) ax xa xy3a3b 25ab 10ab a2b2 25y2x2 x5yx210xy25y2 x25xy 8x 4 x5x7 25x249 5x72x2 y33y 5x3ab 5ab25cd 2cda26a9 a1a24a3 a29 7 249m2 m27m3a 16b2b 17a14xy3xy3 7a 6y8xy 5x

14、3(xy) by yb xy3a3b 25ab 6ab a2b2 64y2x2 x8yx218xy81y2 x29xy 9x 4 x5x1 25x21 5x13x3 y4y 3x2a2b3 5ab2c3d 6cda24a4 a1a24a3 a24 8 325m2 m25m5a 12b2b 17a28xy2x3y2 7a 2y6xy 3x3(xy) ay ya xy3a3b 23ab2 2ab a2b2 16y2x2 x4yx26xy9y2 x23xy 3x 6 x5x5 25x225 5x54x3 y23y 6x2a3b2 3ab38c3 4cda24a4 a3a25a6 a24 5 736m

15、2 m26m5a 12b2b2 17a316xy4xy3 5a 4y39xy 7x3(xy) ax xa xy9a9b 12ab 6ab a2b2 49y2x2 x7yx24xy4y2 x22xy 9x 3 x5x5 25x225 5x57x2 y38y2 3xa2b3 5ab22c 2c3da24a4 a2a25a6 a24 9 581m2 m29m7a 10b2b3 15a38xy7xy2 9b 4y8xy 3x4(xy) am ma xy7a7b 15ab 4ab a2b2 64y2x2 x8yx210xy25y2 x25xy 4x 6 x2x7 4x249 2x75x2 y26y3 7

16、x2a2b 9ab9c 8c2da26a9 a3a24a3 a29 8 59m2 m23m9a 14b4b3 15a312xy2x3y3 3b 6y22xy 5x9(xy) nm mn xy7a7b 17ab 6ab a2b2 16y2x2 x4yx28xy16y2 x24xy 6x 1 x2x5 4x225 2x54x2 y3y 5xa2b2 9ab9c2 8c2da24a4 a3a24a3 a24 2 3100m2 m210m3a 10b8b2 17a4x3y6x3y2 9b 4y4xy 7x5(xy) am ma xy7a7b 6ab2 10ab a2b2 16y2x2 x4yx212xy36y2 x26xy 8x 6 x3x7 9x249 3x77x y28y 7xab3 7a3b7c2d 4c2da26a9 a3a26a9 a29 8 764m2 m28m7a 10b6b3 19a10xy8xy 7b 8y35xy 3x6(xy) bm mb xy5a5b 10a3b2 4ab a