通分x/3y与3x/2y^2

3Y分之X与2Y平方分之3X 通分 2xy/(x+y)(x+y)与x/(x+y)(x-y)怎么通分 分式的通分与约分①：x/a(x-y),y/b(y-x)；②：1/x^2-1,2x/x^2-3x+2； 通分x-y/2x+2y与xy/(x+y）的2次方 通分x-y/2x+2y与xy/(x+y)2 一道数学通分题x-y/2x+2y与xy/(x+y)² 2x+2y/x-y与（x²+y²）/xy通分 2x+2y/x-y与(x+y)²/xy 怎么通分 通分 2X+2Y分之X-Y与(X+Y)²分之XY 通分 x-y/2x+2y 与 xy/(x+y)² 的 (x-y)/(2x+2y)与(xy)/（x+y）²通分要过程 有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做?