Question 965955
{{{((3x)/(10))*((9)/(7x))}}}


{{{(3x*9)/(10*7x)}}}


{{{(27x)/(70x)}}}


{{{27/70}}}


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So {{{((3x)/(10))*((9)/(7x))}}} simplifies to {{{27/70}}} where {{{x<>0}}} to avoid division by zero errors.