Question

СРОЧНО! Помогите решить

Answer 1

$\dfrac{45xy}{7c^2}\cdot\dfrac{14xc^3}{81y^2}:\dfrac{5xc}{27y^3}=\dfrac{5x\cdot2xc}{9y}\cdot\dfrac{27y^3}{5xc}=\dfrac{2x\cdot3y^2}{1}=6xy^2$