1、人教版八年级数学上册分式的乘除法练习题精选603a 20b6b3 17a216xy2xy 3b 4y2xy 9x8(xy) am ma xy3a3b 8ab 2ab a2b2 36y2x2 x6yx216xy64y2 x28xy 9x 5 x3x1 9x21 3x17x2 y8y 8x3ab3 9ab37cd 8c2da26a9 a3a26a9 a29 5 449m2 m27m5a 12b2b 15a320xy8x2y 9b 2y8xy 9x9(xy) bm mb xy3a3b 4a2b 2ab a2b2 4y2x2 x2yx214xy49y2 x27xy 8x 4 x5x2 25x24 5x
2、25x3 y6y3 7x3ab3 9a3b8c 2c2da22a1 a1a24a3 a21 8 3100m2 m210m3a 18b2b3 15a16xy7x2y2 3a 2y3xy 5x5(xy) ax xa xy9a9b 7ab 4ab a2b2 49y2x2 x7yx28xy16y2 x24xy 7x 1 x5x7 25x249 5x78x3 y27y2 3xa2b 7a2b33c3 8c3da22a1 a3a26a9 a21 2 94m2 m22m3a 10b2b2 11a314xy9xy2 9b 4y9xy 7x5(xy) ny yn xy5a5b 8ab 2ab a2b2 36y2
3、x2 x6yx28xy16y2 x24xy 3x 1 x2x2 4x24 2x24x y23y2 7x3ab 9ab33c2 2cda24a4 a3a26a9 a24 1 449m2 m27m5a 14b8b 19a10x2y2xy2 7a 4y22xy 5x6(xy) ay ya xy3a3b 18ab 10ab a2b2 4y2x2 x2yx26xy9y2 x23xy 9x 2 x4x7 16x249 4x76x3 y7y 9x3a3b 3ab32c3 8c2da22a1 a2a23a2 a21 7 99m2 m23m5a 20b4b 11a6x3y4x2y 5b 2y37xy 7x6(x
4、y) am ma xy7a7b 19ab 6ab a2b2 36y2x2 x6yx218xy81y2 x29xy 4x 8 x3x2 9x24 3x28x2 y37y 8xa3b 7a3b2c2 2cda24a4 a2a23a2 a24 7 716m2 m24m9a 18b4b 15a214x3y2xy2 3b 2y34xy 5x4(xy) nx xn xy7a7b 17ab 8ab a2b2 81y2x2 x9yx28xy16y2 x24xy 6x 7 x3x9 9x281 3x95x y6y 8x2ab2 7a3b5c3 6c3da24a4 a2a25a6 a24 9 216m2 m24m
5、5a 18b8b2 15a320xy7xy 9a 8y3xy 5x6(xy) nx xn xy7a7b 27a2b 2ab a2b2 16y2x2 x4yx214xy49y2 x27xy 5x 5 x3x5 9x225 3x59x2 y38y3 2xab 9a2b36c2d 6cda26a9 a1a22a1 a29 2 125m2 m25m5a 14b8b 19a2x3y9xy3 7b 2y5xy 5x9(xy) ax xa xy3a3b 5ab 4ab a2b2 81y2x2 x9yx26xy9y2 x23xy 2x 9 x2x6 4x236 2x65x3 y4y2 4xab 9a3b9c3
6、d 2cda26a9 a3a25a6 a29 9 19m2 m23m3a 20b2b2 19a14xy3xy3 7b 8y35xy 5x6(xy) bm mb xy7a7b 21a2b 8ab a2b2 9y2x2 x3yx212xy36y2 x26xy 9x 8 x2x3 4x29 2x37x y38y3 6xab 3ab23c2 4c3da22a1 a2a24a4 a21 8 14m2 m22m5a 12b2b2 19a24xy8xy2 5a 2y3xy 5x3(xy) bm mb xy7a7b 6ab2 6ab a2b2 25y2x2 x5yx218xy81y2 x29xy 5x 6 x
7、4x3 16x29 4x35x3 y6y 4x2ab2 5ab39cd 4cda24a4 a2a25a6 a24 9 24m2 m22m9a 10b2b2 11a10x2y6xy3 9a 4y23xy 7x3(xy) ay ya xy9a9b 13ab3 2ab a2b2 64y2x2 x8yx24xy4y2 x22xy 3x 2 x5x7 25x249 5x75x3 y26y 8x3ab 5ab3c 8c3da26a9 a2a23a2 a29 7 636m2 m26m5a 12b6b2 17a32xy5xy3 3b 8y28xy 3x7(xy) bm mb xy7a7b 12a2b3 8ab
8、 a2b2 81y2x2 x9yx28xy16y2 x24xy 5x 8 x2x4 4x216 2x44x2 y3y 2x3ab2 7a3b32cd 8cda24a4 a2a23a2 a24 3 549m2 m27m7a 18b6b2 15a216x2y6xy3 5b 2y39xy 5x2(xy) by yb xy3a3b 25ab 8ab a2b2 64y2x2 x8yx216xy64y2 x28xy 5x 4 x3x6 9x236 3x67x3 y8y 7xab3 9a3b8cd 4c3da24a4 a1a23a2 a24 6 736m2 m26m5a 20b2b 11a16xy8xy3
9、9a 8y22xy 9x2(xy) am ma xy9a9b 24ab2 6ab a2b2 9y2x2 x3yx214xy49y2 x27xy 5x 2 x4x8 16x264 4x88x y37y2 5x3ab 9ab33c2d 2c2da26a9 a2a24a4 a29 7 516m2 m24m9a 20b2b 11a8x2y3xy3 5b 2y3xy 3x4(xy) nx xn xy5a5b 7a2b 2ab a2b2 81y2x2 x9yx26xy9y2 x23xy 3x 5 x5x5 25x225 5x59x y28y2 6x3a3b2 7a3b38cd 8c3da26a9 a3a2
10、5a6 a29 3 3100m2 m210m9a 14b8b 13a4x2y6x2y3 7b 4y6xy 9x9(xy) ay ya xy5a5b 25a2b3 10ab a2b2 81y2x2 x9yx212xy36y2 x26xy 5x 6 x2x3 4x29 2x33x y24y 7x3ab 9ab3c3d 8cda24a4 a3a24a3 a24 2 249m2 m27m5a 16b4b 17a218xy3x3y3 9b 8y4xy 9x5(xy) bx xb xy7a7b 22a3b3 8ab a2b2 81y2x2 x9yx212xy36y2 x26xy 6x 4 x5x8 25x
11、264 5x88x3 y37y2 4x3a2b2 5a2b37c3d 4c2da26a9 a1a22a1 a29 5 3100m2 m210m9a 16b8b2 11a218xy9xy 5b 8y4xy 3x3(xy) am ma xy9a9b 19ab3 6ab a2b2 36y2x2 x6yx218xy81y2 x29xy 3x 9 x3x8 9x264 3x86x y7y 3x3a2b2 3ab6c 8c2da22a1 a3a26a9 a21 6 79m2 m23m5a 12b4b 11a218x3y6x3y 5b 4y6xy 9x3(xy) ny yn xy3a3b 17a2b 4ab
12、 a2b2 64y2x2 x8yx218xy81y2 x29xy 9x 4 x3x5 9x225 3x55x y36y2 9x3a3b 9a2b32c 8cda22a1 a1a22a1 a21 2 94m2 m22m5a 12b6b 15a14xy5x3y2 5a 6y5xy 9x4(xy) bm mb xy9a9b 27a2b 4ab a2b2 81y2x2 x9yx216xy64y2 x28xy 8x 4 x2x5 4x225 2x54x y3y3 3x2ab3 3a3b4c3 6c3da24a4 a3a26a9 a24 1 549m2 m27m7a 10b4b3 15a210xy9x3y
13、 7a 8y3xy 7x8(xy) nm mn xy9a9b 2ab2 4ab a2b2 16y2x2 x4yx216xy64y2 x28xy 4x 8 x5x1 25x21 5x13x y24y3 5xab 9a3b22c2d 2c3da26a9 a3a24a3 a29 1 19m2 m23m5a 20b2b 11a218x2y3x2y3 9b 6y7xy 9x4(xy) ax xa xy7a7b 29ab 6ab a2b2 16y2x2 x4yx214xy49y2 x27xy 7x 7 x4x7 16x249 4x78x2 y7y2 6x3ab 3ab4c2 4cda26a9 a1a22a
14、1 a29 6 89m2 m23m7a 16b8b2 13a26xy9x3y 3b 6y9xy 9x2(xy) nm mn xy9a9b 29a3b 10ab a2b2 49y2x2 x7yx24xy4y2 x22xy 8x 8 x4x2 16x24 4x25x y4y 9x2ab 5a2b3cd 4c3da26a9 a1a24a3 a29 7 864m2 m28m7a 18b4b 19a34xy5xy 5a 8y5xy 9x9(xy) nx xn xy5a5b 16ab3 2ab a2b2 81y2x2 x9yx216xy64y2 x28xy 7x 8 x3x1 9x21 3x19x y38
15、y2 8x3a3b2 3ab35cd 8c2da26a9 a2a24a4 a29 9 836m2 m26m7a 20b8b3 15a28xy8xy2 5a 2y25xy 3x9(xy) by yb xy9a9b 18a2b 8ab a2b2 64y2x2 x8yx218xy81y2 x29xy 7x 2 x2x9 4x281 2x93x2 y34y 4xa2b2 3ab6c3d 6cda24a4 a1a23a2 a24 5 425m2 m25m9a 12b4b 17a8x2y7xy2 3a 2y35xy 9x4(xy) ax xa xy9a9b 8a3b2 2ab a2b2 64y2x2 x8
16、yx218xy81y2 x29xy 9x 2 x2x2 4x24 2x27x2 y38y 9x3ab 7ab5c 6cda26a9 a2a24a4 a29 8 836m2 m26m9a 10b2b3 15a8x2y2x2y2 3a 6y28xy 7x6(xy) bx xb xy3a3b 7a2b3 6ab a2b2 81y2x2 x9yx210xy25y2 x25xy 9x 7 x3x8 9x264 3x89x y8y 6x3ab 5a2b37cd 2c3da24a4 a2a24a4 a24 8 616m2 m24m5a 20b6b2 19a36xy2xy3 7a 8y29xy 5x2(xy) am ma xy9a9b 22a3b 6ab a2b2 49y2x2 x7yx26xy9y2 x23xy 2x 4 x2x8 4x264 2x82x2 y23y 2xab3 7ab28c2 8c2da22a1 a3a26a9 a21 6 79m2 m23m5a 20b6b 17a3
