how to multiply rational expression of (x^2 + xy / 15y^3) (35y^2 / 6x+6y) (12x / 10y^2)

Question

how to multiply rational expression

Answer 1

(x^2+xy/15y^3)(35y^2/6x+6y)(12x/10y^2)

= (x^2+xy)(35y^2)(12x) / 15y^3(6x+6y)(10y^2)

= 35x^2y^2+35xy^3(12x) / 150y^5(6x+6y)

= (420x^3y^2+420x^2y^3) / (900xy^5+900y^6)

= 420(x^3y^2+x^2y^3) / 900(xy^5+y^6)

= 42/90[(x^3y^2+x^2y^3)/(xy^5+y^6)]

Answer 2

The rational expression

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