2x²y/3ad * 9a²d/4xy² * 6ax/15y³ = 3ax/2y* 6ax/15y³= 3a²x²/5y^4
42u³v²/ 5v³ * v^4/49u^5 v³ * 35u²v²/6v^7 = 1/v^5
2x²y/3ad * 9a²d/4xy² * 6ax/15y³ = 3ax/2y* 6ax/15y³= 3a²x²/5y^4
42u³v²/ 5v³ * v^4/49u^5 v³ * 35u²v²/6v^7 = 1/v^5