人教版初二数学上册分式的乘除法练习题精选1.docx

1、人教版初二数学上册分式的乘除法练习题精选14x2 y3y 9xa3b 5ab28c3 6cda22a1 a3a26a9 a21 9 925m2 m25m3a 16b4b2 13a38x2y3xy 3b 4y6xy 7x4(xy) ax xa xy7a7b 27a3b3 2ab a2b2 9y2x2 x3yx210xy25y2 x25xy 2x 3 x4x7 16x249 4x72x y23y 4xab3 9a2b9c2d 6c2da26a9 a2a24a4 a29 2 6100m2 m210m5a 10b4b2 11a318xy6x2y 9a 8y24xy 7x9(xy) ny yn xy5a

2、5b 21ab2 4ab a2b2 81y2x2 x9yx28xy16y2 x24xy 7x 5 x3x2 9x24 3x29x y8y2 3xa3b 3ab23c 2c2da26a9 a1a24a3 a29 7 59m2 m23m7a 20b8b 11a16x3y3x3y 3b 6y6xy 9x2(xy) bm mb xy3a3b 27a3b 2ab a2b2 4y2x2 x2yx26xy9y2 x23xy 2x 1 x5x4 25x216 5x44x y23y 6x2a3b 5a2b28cd 8cda22a1 a3a26a9 a21 3 916m2 m24m3a 18b8b3 19a24x

3、2y7x2y 5b 4y7xy 7x8(xy) by yb xy7a7b 14ab 6ab a2b2 64y2x2 x8yx26xy9y2 x23xy 2x 3 x3x1 9x21 3x19x y38y 4xab3 3ab26c3 8c2da26a9 a1a22a1 a29 4 425m2 m25m9a 10b4b 19a16xy7x2y2 5a 8y5xy 7x8(xy) bm mb xy7a7b 13a3b 10ab a2b2 64y2x2 x8yx28xy16y2 x24xy 9x 3 x2x4 4x216 2x45x y24y3 3xab 9a3b29c2d 6c3da22a1 a2a

4、23a2 a21 2 864m2 m28m5a 16b2b 13a16xy2xy 5a 4y35xy 3x5(xy) ax xa xy5a5b 30ab2 2ab a2b2 9y2x2 x3yx214xy49y2 x27xy 5x 3 x5x9 25x281 5x95x3 y26y3 5xa3b 5a3b35cd 6c3da24a4 a1a22a1 a24 4 1100m2 m210m7a 12b2b3 11a8xy8x2y2 3a 4y2xy 5x3(xy) ny yn xy9a9b 18ab3 2ab a2b2 36y2x2 x6yx214xy49y2 x27xy 8x 2 x3x1 9x

5、21 3x14x y23y3 6xa2b 7ab37c2d 2c3da24a4 a3a26a9 a24 3 436m2 m26m7a 12b2b2 13a320xy2xy 7a 8y3xy 7x2(xy) bm mb xy3a3b 5a2b2 4ab a2b2 49y2x2 x7yx24xy4y2 x22xy 9x 8 x2x2 4x24 2x27x y28y2 4xa2b 5a3b29cd 4cda26a9 a1a22a1 a29 7 681m2 m29m5a 10b6b 17a320xy8xy2 5b 8y36xy 5x7(xy) ax xa xy9a9b 24ab2 6ab a2b2 4

6、9y2x2 x7yx212xy36y2 x26xy 8x 7 x4x6 16x236 4x66x3 y27y 3xab 7ab8c 4cda26a9 a2a24a4 a29 8 4100m2 m210m5a 12b4b 19a14xy4x2y3 9a 4y7xy 7x8(xy) nm mn xy3a3b 12a2b2 8ab a2b2 49y2x2 x7yx26xy9y2 x23xy 7x 4 x4x1 16x21 4x14x2 y25y2 4xab3 5a2b7c3 8cda26a9 a3a24a3 a29 6 9100m2 m210m5a 12b2b3 15a36x2y8x2y3 3b 8

7、y5xy 9x4(xy) nm mn xy5a5b 11ab 6ab a2b2 36y2x2 x6yx26xy9y2 x23xy 9x 1 x2x7 4x249 2x79x y8y 9x3a3b 5ab39c2d 2c2da26a9 a1a23a2 a29 6 181m2 m29m9a 14b2b 15a316xy3xy 3b 4y22xy 9x3(xy) am ma xy3a3b 3a2b2 2ab a2b2 64y2x2 x8yx212xy36y2 x26xy 3x 3 x3x1 9x21 3x16x y27y2 3x3a2b 7ab2cd 6c2da26a9 a3a24a3 a29 1

8、74m2 m22m7a 20b4b3 15a4x2y9x3y 7a 2y36xy 9x7(xy) ay ya xy7a7b 12ab2 2ab a2b2 81y2x2 x9yx28xy16y2 x24xy 8x 2 x3x5 9x225 3x58x2 y37y 5xab2 7ab6cd 4c2da24a4 a1a23a2 a24 6 549m2 m27m7a 16b4b2 17a26xy7x2y 9b 6y32xy 9x4(xy) bx xb xy9a9b 9ab 6ab a2b2 25y2x2 x5yx28xy16y2 x24xy 3x 8 x5x8 25x264 5x88x2 y7y 2x

9、a3b 7ab2cd 6c2da22a1 a2a25a6 a21 8 581m2 m29m7a 14b8b3 19a320xy2x3y 3b 8y35xy 3x3(xy) ny yn xy7a7b 13a3b2 10ab a2b2 36y2x2 x6yx26xy9y2 x23xy 8x 2 x5x2 25x24 5x23x y34y3 9x3a3b2 9ab38c 6c2da26a9 a1a23a2 a29 9 449m2 m27m3a 10b8b 11a10x3y9xy2 3a 4y9xy 5x7(xy) nm mn xy9a9b 20ab 10ab a2b2 16y2x2 x4yx26xy

10、9y2 x23xy 8x 5 x4x4 16x216 4x45x2 y36y 5xab 3a2b9c2d 8c3da22a1 a2a25a6 a21 9 736m2 m26m5a 14b2b 15a16x2y3x3y 3a 4y39xy 7x9(xy) ay ya xy9a9b 15ab2 4ab a2b2 49y2x2 x7yx28xy16y2 x24xy 2x 2 x3x1 9x21 3x16x y35y 5xa2b2 3a3b28c3d 8cda22a1 a3a26a9 a21 7 4100m2 m210m5a 12b2b2 11a10xy8x3y3 3a 6y3xy 3x4(xy) b

11、m mb xy3a3b 16a3b 4ab a2b2 36y2x2 x6yx210xy25y2 x25xy 4x 6 x5x9 25x281 5x94x y35y2 5xab2 3a3b34cd 6c3da22a1 a3a26a9 a21 1 19m2 m23m9a 12b4b3 19a18xy4x2y3 7a 4y6xy 3x7(xy) by yb xy3a3b 12a2b2 10ab a2b2 64y2x2 x8yx210xy25y2 x25xy 7x 9 x5x3 25x29 5x35x y6y 2x3a2b2 9ab3c2d 2c3da26a9 a2a24a4 a29 7 936m2

12、m26m7a 12b6b 11a14x2y6x3y3 5b 6y22xy 7x2(xy) ny yn xy9a9b 10a2b 4ab a2b2 64y2x2 x8yx26xy9y2 x23xy 2x 7 x3x1 9x21 3x14x y5y 7xa3b 7ab5c 8c2da26a9 a2a23a2 a29 4 881m2 m29m7a 18b6b2 19a10xy4xy2 3a 4y25xy 3x8(xy) bm mb xy9a9b 6ab 2ab a2b2 4y2x2 x2yx218xy81y2 x29xy 7x 4 x4x4 16x216 4x49x y8y3 4x2a3b 7ab6

13、c 4cda22a1 a1a24a3 a21 9 6100m2 m210m5a 14b6b2 15a4x2y9xy 9a 8y3xy 7x8(xy) nx xn xy5a5b 2a2b 6ab a2b2 36y2x2 x6yx28xy16y2 x24xy 3x 3 x3x6 9x236 3x67x3 y28y3 7xa3b 7ab7c 2c2da24a4 a1a24a3 a24 6 536m2 m26m7a 10b4b2 15a318x3y8xy2 5b 6y7xy 7x4(xy) bm mb xy5a5b 25a2b 4ab a2b2 4y2x2 x2yx216xy64y2 x28xy 4x

14、 5 x3x5 9x225 3x58x y7y3 4xa3b3 9a2b24c 2c2da26a9 a3a25a6 a29 3 481m2 m29m9a 16b8b 19a312xy3xy 7a 6y29xy 3x6(xy) bx xb xy5a5b 28ab3 8ab a2b2 64y2x2 x8yx210xy25y2 x25xy 4x 1 x2x5 4x225 2x55x y24y3 3xab2 7ab23c 4cda24a4 a3a25a6 a24 6 649m2 m27m7a 16b4b 13a22x2y2x3y 9b 4y39xy 3x4(xy) nm mn xy3a3b 14a2b

15、3 4ab a2b2 49y2x2 x7yx214xy49y2 x27xy 8x 2 x4x1 16x21 4x17x2 y8y3 7xab2 5ab32c3 6c2da24a4 a2a25a6 a24 4 449m2 m27m9a 12b8b3 15a16x2y9xy 7a 6y2xy 3x4(xy) ay ya xy3a3b 17ab 10ab a2b2 25y2x2 x5yx24xy4y2 x22xy 9x 6 x3x4 9x216 3x45x y26y2 4xab 5a3b25cd 2cda26a9 a2a25a6 a29 1 625m2 m25m5a 14b2b3 11a6x2y5x

16、y3 7a 8y5xy 3x9(xy) ny yn xy5a5b 21ab 10ab a2b2 4y2x2 x2yx26xy9y2 x23xy 7x 4 x4x5 16x225 4x52x2 y23y 9x2ab 3a3b38c2d 2cda22a1 a2a25a6 a21 4 336m2 m26m5a 20b6b2 15a24x3y5xy 9a 4y7xy 9x4(xy) ay ya xy9a9b 20a3b3 2ab a2b2 9y2x2 x3yx210xy25y2 x25xy 7x 3 x4x6 16x236 4x63x y34y 9xab 5ab33c 4c2da26a9 a1a24a3 a29 8 625m2 m25m5a 14b4b3 13a318xy7x3y 7b 8y35xy 7x5(xy) by yb xy5a5b 10a2b 6ab a2b2 16y2x2 x4yx218xy81y2 x29xy 9x 2 x2x5 4x225 2x56x3 y5y 2xab2 5ab4c3 8c2d