通分x-y/3x+3y与2xy/(x+y)^2

通分x-y/3x+3y与2xy/(x+y)^2 2xy/(x+y)(x+y)与x/(x+y)(x-y)怎么通分 x/xy-y²与y/x²-xy 通分 通分x/3y与3x/2y^2 通分x/3y与3x/2y^2 a/x-y,b/3y-3x,c/x^2-2xy+y^2通分 分式的通分：2xy/(x+y)^2与x/(x^2+y^2)分式通分, 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 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 2x+2y/x-y与(x+y)²/xy 怎么通分 2x+2y/x-y与（x²+y²）/xy通分 一道数学通分题x-y/2x+2y与xy/(x+y)² 有谁知道数学通分X-Y/2X+2Y与XY/(X+Y)怎么做? x-y与y/x-y通分 约分2X^2Y(X-Y)/12XY^2(Y-X) 通分1/a^2-3a与1/a^2-9 通分1/2x-2与1/(x-1)^2约分2X^2Y(X-Y)/12XY^2(Y-X)通分1/a^2-3a与1/a^2-9通分1/2x-2与1/(x-1)^2通分1/（x+1）^2与2/x^2-1与3/(x-1)(x-2)