初中数学 分式化简 少量习题
题404
222x,x,xy,yx,ya,3ab,2b ? ? ,,,a,2b,2234233a,2ab,2bx,x,xy,xyx
223322a,1a,2a,4a,4x,xy,2y5x,y,,? ? ,,,222222a,1a,4a,2a,1x,xy,yx,3xy,2y
343222,,x,2x,24x,11x,y,,,,44,,,,? ? ,,,,x,y,,6x,6y,,,,,2,x,6x,4x,2x,1xy,,,,,,
23222a,7a,10a,1a,11,x9,6x,xx,4x,3,,,,? ? 22222a,2a,a,1a,4a,4x,x,62x,6x,45x,20x,20
题405
222a,abab1,xxy,xy,,,a,b, ?,, ? ,2222a,abb,ab,,x1,xx,x
2222222y,9y,5y,6y,5y,6a,ba,ba,b,,,, ? ?3322222a,b,,ababa,by,1y,5y,6y,5y,6
2m,mm,m,343,,,? 222m,m,m,m,m,m,m291432
222222a,b,c,2aba,b,c,2bc,? 222222a,b,c,2aba,b,c,2bc
2322222,,,,,,x,4x,4x,4x,2x3x,x,,,,,,,,,? 2222,,,,,,x,9x,3xx,x,64,x,,,,,,
222222,,,,,,a,b,a,ba,2ab,b,1a,2ab,b,a,b,,,,,,,,? 222222,,,,,,a,b,a,ba,2ab,b,1a,2ab,b,a,b,,,,,,
题408 计算
5x,72x,52x,157x7y,,, ? ? 222x,3xx,3xx,3xx,yy,x
2222xx1a,bb,c,,,,,,?, ? ,,,,,,,,,,,,x,1x,21,xx,2x,12,x,,,,,,,,a,cb,ca,cc,b
a,b,ca,2b,3cb,2c5xx4y,,,,? ? 2222a,b,cb,c,ac,a,b,,,,x,yx,yx,yy,x
题409 计算
a,9ba,3b5 ? ? ,2x,2,22x,16ab9ab
xyxyy52? ? ,,,222x,yy,x3y,9x,yy,y,6
a,16111,,,? ? 22222a,3a,2a,a,2x,13x,42x,14x,48x,15x,56
222113aa,baba,b,,69,,? ? ,,226a,4b6a,4b4b,9b,,,,,,,,,,,,a,bb,cb,ab,ca,bc,b
题410 计算
225c7abx,y,, ? ? x,y,2226ab8bc12acx,y
2369a,,?,a,1 ? 22x,42x,44,xa,1
64134,,,? ? 222x,5x,1a,4a,5a,2a,15x,4x,5
1x1,,? 222x,4x,4x,4x,4
23yx6y? ,,22223223x,yx,2xy,yx,xy,xy,y
题419
223a,bbb1x,3x,1x,,,, ? ? 222a,ba,b1,xa,bx,1
111y,,? ? 2222a,3a,25a,a,6y,2y,8y,6y,8
433,,? ,,,,,,,,,,,,a,xc,xa,xc,aa,cc,x
111,,? ,,,,,,,,,,,,x,yx,ay,ay,xa,xa,y
3x,1x,2,,? 2225x,5x,10x,x,6x,4x,3
2x,12x,12x,3,,,,? 2222,,2x,5x,34x,8x,32,,2x,3x,1
题420
2223a4a4a1x,3xx,11x,30,, ? ? ,,1,,2223a243a,a7a8x,6x,9x,5x,,
,,,,,,y,35yxyx? ? ,,,,,,,,y,2,,2,,,2,,,,,,4y,8y,2xyxy,,,,,,
3322a,27ba,2ba,5ab,6b,,? 222a,2ba,3ab,9ba,2ab
2,,,,8x,41131221,,,,,,,,? ? 1,,1,,,,,,,,,,,,,22,,4x2xaaax,4a,2,2,2,4,,,,,,,,,,
题421
xx,1,11,,2 ? x,,,1,,,,,2xxx,1,1,1,,
1111,,,, ?,,,,,,,2222a,2ba,2ba,4ab,4ba,4ab,4b,,,,
2abba,,? ,1,,,,222aa,2ab,bab,b,,
,,444,,,,,,? 1,a,4,,3,,1,,,,,,,,a,2aa,,,,,,,,
2,,2ab,4b,5a,104b,45,,,,10? 2,,2,2b2,2b,,
22,,x,3xx,23x,8,,,,? ,,222,xx,4x,x,6,,
22,,,,xxxx,,,,,,,? 2222,,,,,,xyxyx,2xy,yx,y,,,,