若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值

若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值
若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值

若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值
令x=2a,y=3a,a≠0
2x^2+xy+3y^2/x^2-xy+2y^2
=8a²+6a²+27a²/4a²-6a²+18a²
=41a²/16a²
=41/16