Question 1007112


{{{(39xy^2z^-1)/(91x^2 yz^-2)}}}


{{{(39xy^2(1/z))/(91x^2y(1/z^2))}}}


{{{((39xy^2)/z)/((91x^2y)/z^2))}}}


{{{((39xy^2)z^2)/(z(91x^2y))}}}


{{{((cross(39)3cross(x)y^cross(2))z^cross(2))/(cross(z)(cross(91)7x^cross(2)cross(y)))}}}


{{{3yz/7x}}}