人教版初二数学上册分式的乘除法练习题精选24.docx

1、人教版初二数学上册分式的乘除法练习题精选242xy9x3y 3a 6y39xy 3x5(xy) ny yn xy9a9b 18ab2 10ab a2b2 36y2x2 x6yx214xy49y2 x27xy 6x 8 x2x4 4x216 2x47x2 y6y 2x2ab 9a3b24cd 2cda26a9 a1a24a3 a29 8 249m2 m27m9a 10b6b3 19a212x2y7x2y2 5a 4y22xy 7x7(xy) nx xn xy9a9b 6a2b2 4ab a2b2 9y2x2 x3yx210xy25y2 x25xy 3x 4 x5x4 25x216 5x47x y

2、28y3 6x2ab3 5a2b4cd 2cda26a9 a3a25a6 a29 1 649m2 m27m3a 18b2b 11a212xy8x2y 3a 2y5xy 3x9(xy) nm mn xy7a7b 21a3b3 6ab a2b2 16y2x2 x4yx218xy81y2 x29xy 7x 3 x3x5 9x225 3x54x2 y35y 5x2a2b 7ab23c 4c3da26a9 a3a26a9 a29 6 516m2 m24m5a 18b8b3 19a10xy8x2y 3b 6y9xy 3x3(xy) bm mb xy9a9b 17ab3 10ab a2b2 81y2x2 x

3、9yx28xy16y2 x24xy 8x 7 x2x3 4x29 2x34x2 y23y 8x2ab 5a2b7c 6c2da26a9 a2a25a6 a29 2 19m2 m23m5a 10b8b2 13a16x2y3x2y 3a 8y36xy 9x6(xy) bm mb xy7a7b 27a3b 8ab a2b2 81y2x2 x9yx26xy9y2 x23xy 5x 4 x5x4 25x216 5x47x y6y 9xab2 9ab2c 6c3da24a4 a2a24a4 a24 6 89m2 m23m9a 10b8b 15a312xy5x3y 5b 2y22xy 7x6(xy) ny

4、yn xy5a5b 2ab2 10ab a2b2 9y2x2 x3yx24xy4y2 x22xy 6x 1 x3x2 9x24 3x26x y5y2 9x2a2b 3a2b8c2 2c3da24a4 a1a24a3 a24 8 716m2 m24m7a 18b8b3 17a36x3y3x2y3 5b 8y25xy 9x4(xy) bx xb xy7a7b 6a3b 6ab a2b2 81y2x2 x9yx212xy36y2 x26xy 3x 8 x4x3 16x29 4x35x2 y34y 2x3ab3 3ab23c3d 2cda24a4 a1a24a3 a24 6 836m2 m26m3a

5、16b4b 13a6xy2x3y 7a 8y9xy 3x3(xy) am ma xy5a5b 19ab 2ab a2b2 4y2x2 x2yx214xy49y2 x27xy 5x 4 x4x4 16x216 4x43x2 y24y 8x2a2b3 5ab35c3 4cda24a4 a2a23a2 a24 6 24m2 m22m9a 12b2b 19a2xy7xy 7a 8y25xy 3x3(xy) am ma xy7a7b 21a3b3 6ab a2b2 4y2x2 x2yx28xy16y2 x24xy 9x 9 x5x3 25x29 5x37x2 y6y 8xab 9ab23c 6c2da2

6、2a1 a2a23a2 a21 8 2100m2 m210m3a 16b8b2 19a36xy5xy 5b 2y32xy 7x5(xy) am ma xy5a5b 6ab3 2ab a2b2 36y2x2 x6yx210xy25y2 x25xy 7x 7 x3x5 9x225 3x56x y7y2 9xa2b2 9a3b7cd 4c2da26a9 a1a23a2 a29 6 425m2 m25m5a 10b4b 15a220xy3xy 5b 2y36xy 9x8(xy) am ma xy5a5b 22ab 6ab a2b2 4y2x2 x2yx216xy64y2 x28xy 4x 6 x4x1

7、 16x21 4x16x y27y 6xab 5ab5c3 8c3da22a1 a3a26a9 a21 5 816m2 m24m9a 14b6b 19a28x3y6x3y2 3a 2y37xy 9x6(xy) nm mn xy5a5b 27ab 6ab a2b2 81y2x2 x9yx28xy16y2 x24xy 4x 4 x5x3 25x29 5x32x y23y 3xab 5a2b23c 8cda22a1 a2a25a6 a21 1 764m2 m28m9a 10b6b2 19a22xy8xy 3b 6y29xy 9x6(xy) bx xb xy9a9b 22a3b3 6ab a2b2 1

8、6y2x2 x4yx214xy49y2 x27xy 8x 9 x2x4 4x216 2x44x3 y33y3 3xa2b2 3ab36c2 2cda26a9 a3a26a9 a29 4 564m2 m28m5a 18b2b3 19a314xy7x2y 9b 4y39xy 3x4(xy) bx xb xy3a3b 9ab2 2ab a2b2 36y2x2 x6yx214xy49y2 x27xy 5x 7 x3x8 9x264 3x87x y6y2 8x2a3b 9a2b6c3 4c3da26a9 a3a24a3 a29 8 99m2 m23m9a 16b4b 11a210x3y3xy2 5a 8y37xy 9x3(xy) ax xa xy3a3b 25ab 4ab a2b2 81y2x2 x9yx218xy81y2 x29xy 3x 4 x3x2 9x2