三个分式通分题(1):2xy/(x+y)²与x/x²-y²(2):x-y/2x+2y与xy/(x+y)²(3):2mn/4m²-4与2m-3/2m+3

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三个分式通分题(1):2xy/(x+y)²与x/x²-y²(2):x-y/2x+2y与xy/(x+y)²(3):2mn/4m²-4与2m-3/2m+3

三个分式通分题(1):2xy/(x+y)²与x/x²-y²(2):x-y/2x+2y与xy/(x+y)²(3):2mn/4m²-4与2m-3/2m+3
三个分式通分题
(1):2xy/(x+y)²与x/x²-y²
(2):x-y/2x+2y与xy/(x+y)²
(3):2mn/4m²-4与2m-3/2m+3

三个分式通分题(1):2xy/(x+y)²与x/x²-y²(2):x-y/2x+2y与xy/(x+y)²(3):2mn/4m²-4与2m-3/2m+3
(1)2xy(x-y)/[(x+y)²(x-y)]与x(x+y)/[(x+y)²(x-y)]
(2) (x²-y²)/2(x+y)²与2xy/2(x+y)²
(3)2mn(2m+3)/[4(m²-1)(2m+3)]与(2m-3)(4m²-4)/[4(m²-1)(2m+3)]

2xy(x-y)/[(x+y)²(x-y)]与x(x+y)/[(x+y)²(x-y)]
(x²-y²)/2(x+y)²与2xy/2(x+y)²
2mn(2m+3)/[4(m²-1)(2m+3)]与(2m-3)(4m²-4)/[4(m²-1)(2m+3)]

分式的通分:2xy/(x+y)^2与x/(x^2+y^2)分式通分, 三个分式通分题(1):2xy/(x+y)²与x/x²-y²(2):x-y/2x+2y与xy/(x+y)²(3):2mn/4m²-4与2m-3/2m+3 分式通分:(1).将y/x²-xy,x/2y-2x通分后,分别是___,___?其余题见问题补充↓(2).把a/a-b,b/a+b,2/b²-a²的分母化为b²-a²后,三个分式的分子之和为___?通分:(3)12/m²-9,4/9-3m(4)1/x-2,1/4-x² 2xy/(x+y)^2与x/x^2-y^2分式通分急急急急! 2xy/(x+y)^2与x/(x^2+y^2)分式通分 (选择)对分式y/2x,x/3y^2,1/4xy通分是,最简公分母是( ) A.24x^2y^3 B.12x^2y^2 C.24xy D.12xy^2 分式通分:xy分之2,xy-x的平方分之3y 分式的通分和约分通分:1/x²+x,1/x²-x 约分:(一)x²-3/2x³-6x (二)x²-2xy+y²/x²-y² 如果可以,希望能说一些分式通分和约分的方法. 分式通分:y分之2,xy-x的平方分之3y 2道数学(分式的通分)通分 (1)1/3x平方,5/12xy (2)1/x平方+x,1/x平方-x 分式x²y分之1与xy²通分后的结果分别是? 分式通分题,1.-y/4x²,x²/3y²,2/5xy2.3x/x²-y²,2y/xy-y²,5/2x+2y3.a-b,1/a-b 分式通分 分式ab/xy^2,bc/x(a-b),a/y(b-a)的最简公分母 分式通分 分式ab/xy^2,bc/x(a-b),a/y(b-a)的最简公分母 若X分之一减y分之一等于3,则分式2x+3xy-2y/x-2xy-y的值是多少?(用分式的基本性质和约分,不用要通分) 分式通分、约分通分:(1) 1/y-1和1/y+1约分:(1)2(x-y)³/y-x 通分1/2x^2y与1/3xy^2通分:1/(2x^2 y)与1/(3x y^2)约分:(x^ 2+xy)/(x^2-y^2)不改变分式的值,使分子、分母中的最高次项系数是正数.(-a^3+a-1)/(1-a^2-a^3) 把分式1/x,2/3y,3/z通分后,结果是( ).