Question 310687
{{{(56x^2*y)/(70x^3*y^2)}}}, and {{{56=8*7=2*4*7=2*2*2*7}}}, and {{{70=10*7=2*5*7}}}, and {{{x^2=x*x}}}, and {{{x^3=x*x*x}}}, and {{{y^2=y*y}}}, so

{{{(56x^2*y)/(70x^3*y^2)=(2*2*2*7*x*x*y)/(2*5*7*x*x*x*y*y)

=(cross(2)*2*2*cross(7)*cross(x)*cross(x)*cross(y))/(cross(2)*5*cross(7)*cross(x)*cross(x)*x*cross(y)*y)=(2*2)/(5*x*y)=4/(5xy)}}}
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Edwin