如题,化简a^2(1/b-1/c)+b^2(1/c+1/a)+c^2(1/a-1/b)/a(1/b-1/c)+b(1/c

如题,化简a^2(1/b-1/c)+b^2(1/c+1/a)+c^2(1/a-1/b)/a(1/b-1/c)+b(1/c+1/a)+c(1/a-1/b)
写错一个地方，少加了括号
(a^2(1/b-1/c)+b^2(1/c+1/a)+c^2(1/a-1/b))/(a(1/b-1/c)+b(1/c+1/a)+c(1/a-1/b))
顺便发张好看的图吧