初二数学上册分式的乘除法120.docx

1、初二数学上册分式的乘除法1204x 1 x5x3 25x29 5x33x y34y2 4x2a3b 7a3b29c3d 2c2da24a4 a2a25a6 a24 8 164m2 m28m5a 20b4b 17a26xy3xy2 5a 4y7xy 5x4(xy) ax xa xy3a3b 21a3b3 4ab a2b2 4y2x2 x2yx26xy9y2 x23xy 4x 1 x4x4 16x216 4x49x3 y8y 2x2ab 9a2b26cd 6c3da22a1 a2a24a4 a21 9 864m2 m28m3a 20b4b 19a320x2y2xy 5a 4y37xy 3x5(xy

2、) nx xn xy5a5b 5a3b 6ab a2b2 81y2x2 x9yx216xy64y2 x28xy 3x 6 x4x4 16x216 4x44x2 y25y 6x3ab 9a2b8c2d 6c3da26a9 a1a22a1 a29 2 59m2 m23m3a 20b6b 15a36x3y3x3y3 9a 4y3xy 9x4(xy) ay ya xy9a9b 11a3b3 8ab a2b2 25y2x2 x5yx214xy49y2 x27xy 8x 6 x2x3 4x29 2x36x2 y27y3 4xa3b 9ab8c2 2c3da26a9 a2a24a4 a29 3 649m2

3、m27m3a 18b2b2 13a26xy2x2y3 9b 8y38xy 3x3(xy) am ma xy9a9b 16ab3 10ab a2b2 25y2x2 x5yx214xy49y2 x27xy 4x 5 x4x6 16x236 4x67x y26y2 5xab3 3a3b25cd 6cda26a9 a1a23a2 a29 1 525m2 m25m9a 12b2b 11a24x3y8xy 3a 8y9xy 9x6(xy) bx xb xy9a9b 2a2b3 2ab a2b2 25y2x2 x5yx218xy81y2 x29xy 8x 4 x5x3 25x29 5x37x y8y3 4x

4、a3b2 3a2b2c 6cda24a4 a2a24a4 a24 4 4100m2 m210m5a 18b2b2 19a4x3y3xy 9a 4y35xy 5x9(xy) nx xn xy7a7b 9ab 6ab a2b2 64y2x2 x8yx216xy64y2 x28xy 7x 8 x4x5 16x225 4x57x y6y 3x3ab 9a2b7c2 8c3da24a4 a3a25a6 a24 1 64m2 m22m9a 20b2b3 15a316xy3xy2 5b 6y39xy 5x9(xy) nx xn xy7a7b 13a3b3 2ab a2b2 36y2x2 x6yx24xy4y

5、2 x22xy 8x 1 x2x9 4x281 2x97x y8y 3xa2b 5ab36c3d 2cda24a4 a1a24a3 a24 7 436m2 m26m5a 14b6b 11a318xy3xy 7a 6y9xy 5x9(xy) nx xn xy9a9b 5a3b 10ab a2b2 16y2x2 x4yx28xy16y2 x24xy 9x 7 x4x1 16x21 4x18x y7y 7x2a3b3 9a3b38c3d 2cda24a4 a3a25a6 a24 9 7100m2 m210m3a 14b2b2 13a10xy3xy 5a 2y38xy 5x3(xy) ax xa xy

6、5a5b 14a2b 2ab a2b2 49y2x2 x7yx212xy36y2 x26xy 9x 8 x2x8 4x264 2x86x3 y5y3 4x2a2b 3a3b4c2d 2c2da22a1 a1a22a1 a21 1 681m2 m29m3a 12b8b 19a32x3y4x3y 3a 4y39xy 9x9(xy) nm mn xy9a9b 27ab2 10ab a2b2 9y2x2 x3yx26xy9y2 x23xy 7x 3 x2x2 4x24 2x29x3 y8y 5xab3 7ab37cd 6cda22a1 a1a22a1 a21 1 416m2 m24m7a 10b8b

7、19a310x3y2xy2 9a 2y23xy 3x9(xy) bx xb xy7a7b 29ab 6ab a2b2 81y2x2 x9yx216xy64y2 x28xy 8x 7 x3x5 9x225 3x55x y26y3 9xab 7a3b6c 6c2da24a4 a3a24a3 a24 9 516m2 m24m3a 12b6b 17a20x2y3xy 7a 2y9xy 9x6(xy) bx xb xy7a7b 4ab2 4ab a2b2 36y2x2 x6yx210xy25y2 x25xy 3x 9 x5x9 25x281 5x93x y4y3 8xa3b2 9ab29cd 8c3da

8、22a1 a3a25a6 a21 6 664m2 m28m7a 14b2b 11a22xy8x2y 7b 8y5xy 3x9(xy) bm mb xy7a7b 27ab3 8ab a2b2 64y2x2 x8yx24xy4y2 x22xy 3x 6 x2x4 4x216 2x45x3 y26y 4x3ab 9ab9c3d 2c3da22a1 a2a23a2 a21 5 125m2 m25m7a 10b8b3 13a34xy4xy 9b 6y6xy 7x8(xy) ay ya xy9a9b 8a2b3 6ab a2b2 81y2x2 x9yx24xy4y2 x22xy 6x 3 x4x5 16x225 4x53x y4y2 9xa3b3 7ab5c 4c3da26a9 a3a25a6 a29 3 125m2 m25m5a 16b4b 15a3