1、人教版八年级数学上册分式的乘除法练习题精选537a7b 16a3b 8ab a2b2 16y2x2 x4yx214xy49y2 x27xy 9x 2 x4x7 16x249 4x77x y8y2 8x2ab 5a3b39cd 4cda22a1 a3a26a9 a21 4 716m2 m24m5a 18b8b3 19a14x2y5x3y2 9b 6y34xy 5x4(xy) ny yn xy9a9b 26a2b2 4ab a2b2 49y2x2 x7yx212xy36y2 x26xy 8x 7 x2x2 4x24 2x24x y5y 3x2ab3 3a3b38c2 2cda24a4 a2a24a
2、4 a24 4 449m2 m27m7a 18b8b 19a16xy6x2y 5b 4y38xy 5x8(xy) bx xb xy7a7b 30ab3 4ab a2b2 16y2x2 x4yx218xy81y2 x29xy 8x 3 x5x8 25x264 5x88x y27y3 8xa2b3 9a2b23c2 4c3da24a4 a1a24a3 a24 1 216m2 m24m3a 14b2b2 17a210x3y8x3y2 5b 2y7xy 7x6(xy) ny yn xy3a3b 23a3b 10ab a2b2 9y2x2 x3yx212xy36y2 x26xy 4x 8 x5x3 25
3、x29 5x39x3 y8y 8x2ab2 9a3b4c2d 2c3da22a1 a1a24a3 a21 8 364m2 m28m3a 12b4b 15a318xy5xy 7b 6y5xy 7x3(xy) by yb xy3a3b 26ab3 2ab a2b2 64y2x2 x8yx26xy9y2 x23xy 2x 8 x3x8 9x264 3x87x2 y6y3 3x3a2b2 9ab2c3 4c2da22a1 a1a23a2 a21 4 825m2 m25m9a 12b2b 13a28x2y4xy 5b 4y7xy 3x7(xy) nx xn xy3a3b 2a3b 6ab a2b2 49
4、y2x2 x7yx212xy36y2 x26xy 3x 2 x2x6 4x236 2x68x y37y 8x2ab2 5ab6c2d 2cda26a9 a3a25a6 a29 8 125m2 m25m5a 14b6b3 13a8x2y7xy3 7a 8y3xy 9x7(xy) ny yn xy9a9b 3ab 4ab a2b2 81y2x2 x9yx218xy81y2 x29xy 8x 4 x4x8 16x264 4x85x y4y 3xa2b 3a3b32cd 6cda22a1 a1a23a2 a21 6 149m2 m27m5a 14b2b2 13a312xy2x3y 9b 2y33xy
5、3x5(xy) am ma xy9a9b 7ab3 4ab a2b2 9y2x2 x3yx212xy36y2 x26xy 3x 2 x5x1 25x21 5x16x3 y27y3 7x3a2b 9a3b8c2 2c2da26a9 a1a23a2 a29 8 74m2 m22m7a 12b8b 17a4x3y5xy 9a 8y6xy 9x9(xy) am ma xy9a9b 18a3b 4ab a2b2 4y2x2 x2yx28xy16y2 x24xy 6x 3 x2x4 4x216 2x47x y8y 4xab 3ab29c3 6c2da24a4 a2a23a2 a24 5 8100m2 m2
6、10m9a 18b4b3 17a210x3y7xy3 9a 6y25xy 7x9(xy) ny yn xy7a7b 20ab 10ab a2b2 81y2x2 x9yx214xy49y2 x27xy 3x 4 x4x4 16x216 4x44x y25y3 6xa3b2 5a2b36c 8cda22a1 a2a24a4 a21 8 881m2 m29m9a 20b4b 13a320x3y8x3y 7b 6y33xy 9x7(xy) nx xn xy3a3b 2ab2 10ab a2b2 25y2x2 x5yx26xy9y2 x23xy 6x 3 x4x2 16x24 4x26x2 y25y 9
7、x2a2b2 7ab2c 8c2da22a1 a2a25a6 a21 3 6100m2 m210m9a 12b6b2 15a14xy4xy 3b 4y26xy 9x4(xy) ny yn xy5a5b 12ab 6ab a2b2 81y2x2 x9yx212xy36y2 x26xy 5x 1 x4x1 16x21 4x16x2 y25y2 8x3ab3 7a2b5c 6cda26a9 a3a24a3 a29 2 94m2 m22m9a 12b4b2 17a216x2y8x2y 3a 4y5xy 7x5(xy) am ma xy3a3b 26a2b3 6ab a2b2 81y2x2 x9yx21
8、4xy49y2 x27xy 3x 1 x4x5 16x225 4x58x y37y3 5x3a3b3 5a3b38cd 4cda26a9 a3a25a6 a29 3 74m2 m22m7a 12b4b 11a212x2y4x2y3 3a 6y38xy 5x8(xy) am ma xy3a3b 10ab3 2ab a2b2 49y2x2 x7yx24xy4y2 x22xy 5x 7 x4x4 16x216 4x45x3 y6y3 2x3ab2 3a2b9c 6cda22a1 a3a25a6 a21 3 616m2 m24m5a 18b4b3 11a8xy2x2y 9a 2y4xy 9x7(xy)
9、 bx xb xy9a9b 2a2b2 10ab a2b2 4y2x2 x2yx212xy36y2 x26xy 2x 3 x4x6 16x236 4x67x y36y 9x3a2b 7ab38c 6cda22a1 a1a22a1 a21 7 681m2 m29m5a 20b8b3 19a218x2y8xy3 5a 4y37xy 3x3(xy) by yb xy7a7b 2a3b 10ab a2b2 16y2x2 x4yx26xy9y2 x23xy 3x 2 x5x8 25x264 5x82x3 y33y2 7xa2b 9a2b23c3 2c2da22a1 a3a24a3 a21 2 164m2
10、 m28m5a 20b6b2 19a2x2y8xy2 9b 2y37xy 7x6(xy) ny yn xy3a3b 4ab3 10ab a2b2 16y2x2 x4yx26xy9y2 x23xy 7x 3 x4x8 16x264 4x87x y8y2 2xa2b2 7ab6c2d 6c2da22a1 a2a23a2 a21 7 925m2 m25m9a 20b4b3 17a10xy2x2y 9a 2y9xy 7x8(xy) by yb xy3a3b 5a3b 8ab a2b2 25y2x2 x5yx212xy36y2 x26xy 3x 7 x2x3 4x29 2x34x y33y 9x2a2b
11、 7ab8cd 4c3da22a1 a1a22a1 a21 1 164m2 m28m3a 12b2b 17a16xy2x2y 3a 2y6xy 3x2(xy) nx xn xy3a3b 26ab 6ab a2b2 25y2x2 x5yx28xy16y2 x24xy 5x 3 x5x2 25x24 5x24x y33y 9x2ab2 7ab35c 8cda24a4 a1a24a3 a24 3 94m2 m22m5a 10b4b 19a16x3y6x3y 3b 2y9xy 3x6(xy) nm mn xy7a7b 10a3b 8ab a2b2 49y2x2 x7yx26xy9y2 x23xy 6x
12、 9 x2x7 4x249 2x78x3 y7y2 9x2ab 3ab22c 8c3da26a9 a3a25a6 a29 2 864m2 m28m5a 18b2b 17a216x2y8x2y 9b 4y8xy 7x6(xy) ny yn xy3a3b 20ab 8ab a2b2 36y2x2 x6yx28xy16y2 x24xy 3x 2 x5x9 25x281 5x95x3 y34y 6x3a3b 7ab29c 4c3da26a9 a3a24a3 a29 1 94m2 m22m3a 12b2b3 19a16xy4xy 7b 2y29xy 3x8(xy) nm mn xy7a7b 23ab3
13、8ab a2b2 64y2x2 x8yx210xy25y2 x25xy 8x 5 x2x6 4x236 2x64x y35y3 6xa2b 3a2b33cd 8c2da24a4 a2a24a4 a24 7 164m2 m28m7a 20b6b 17a16xy7x3y2 9b 2y29xy 7x8(xy) ay ya xy3a3b 25ab3 2ab a2b2 36y2x2 x6yx28xy16y2 x24xy 9x 2 x3x5 9x225 3x57x3 y8y 3xa2b3 9ab24cd 2c2da22a1 a1a23a2 a21 4 836m2 m26m5a 20b6b 11a20x2y
14、7xy 3b 4y4xy 7x5(xy) am ma xy3a3b 25ab3 4ab a2b2 16y2x2 x4yx216xy64y2 x28xy 3x 5 x4x1 16x21 4x14x y33y 6xa3b2 3ab23c 6c2da24a4 a3a25a6 a24 1 39m2 m23m3a 12b2b 11a38xy6xy2 5a 2y6xy 7x8(xy) nm mn xy3a3b 11ab3 6ab a2b2 81y2x2 x9yx212xy36y2 x26xy 9x 8 x5x5 25x225 5x53x y24y3 9xa3b3 9ab37cd 6cda22a1 a2a2
15、3a2 a21 7 29m2 m23m7a 20b2b 15a12x3y9xy 3b 6y23xy 7x7(xy) bm mb xy5a5b 8ab 10ab a2b2 4y2x2 x2yx218xy81y2 x29xy 7x 2 x5x8 25x264 5x82x y3y 7xa2b 3a3b6c2 6cda22a1 a2a23a2 a21 6 249m2 m27m9a 18b6b2 13a36x2y4xy3 7b 2y5xy 7x4(xy) am ma xy3a3b 9ab 4ab a2b2 49y2x2 x7yx210xy25y2 x25xy 9x 8 x3x7 9x249 3x75x3
16、 y6y 5x3a2b 5a2b36c2 8c2da24a4 a3a25a6 a24 4 425m2 m25m5a 20b8b2 13a216xy5x3y2 9b 6y29xy 9x3(xy) by yb xy7a7b 22ab 6ab a2b2 4y2x2 x2yx28xy16y2 x24xy 9x 9 x3x9 9x281 3x96x2 y27y 7x2a2b2 7a2b34c2d 6cda22a1 a1a24a3 a21 5 349m2 m27m5a 20b4b 11a18x3y9xy 5a 2y32xy 5x3(xy) by yb xy3a3b 24a2b2 4ab a2b2 64y2x2 x8yx28xy16y2 x24xy 7x 5 x5x7 25x249 5x75x2 y6y3 5xa2b2 5ab28cd 2cda22a1 a2a24a4 a21 1 125m2 m25m9a 20b8b2 19a18xy2x2y3 7a 8y9xy 7x3(xy) ax xa xy9a9b 24ab 4ab a2b2
