通分5道

题目

通分5道
约分10道

答案

5X/25x^2=1/5x,(9ab^2+6abc)/3a^2b =3ab(3b+2c)/3a^2b =(3b+2c)/a (9a^2+6ab+b^2)/(3a+b) =(3a+b)^2/(3a+b) =3a+b (x^2-36)/(2x+12) =(x+6)(x-6)/2(x+6) =(x-6)/25)x/3y=2xy/6y^2,3x/2y^2=9x/6y^26)6c/a^2b=18c/3a^2...