{\frac{3c^2}{5ab}\div\frac{9}{2a}}
{\frac{x^2+1}{x}\div\frac{x^2-1}{2x}}
{\frac{x^2+6x-27}{x^2}\div\frac{x^2-3x}{9}}
{\frac{x^2+6x+8}{3x+2}\div\frac{-4-x}{3x^2-x-2}}
{\frac{x^2-9}{x+3}\div(x-3)}
{\frac{2x^2-2x}{x^2+2x+1}\div\frac{3x-3}{2x+2}}
{\frac{x^2+4x+3}{2x^2-11x+5}\div\frac{x^2+3x}{2x-1}}
{\frac{x^2-121}{x^2+x-20}\div\frac{x^2-10x-11}{x^2-25}}