Question 131243
{{{(mn-rs)/(amn-ars)}}} Start with the given expression


{{{(mn-rs)/(a(mn-rs))}}}   Factor {{{amn-ars}}} to get {{{a(mn-rs)}}} 


{{{cross(mn-rs)/(a*cross(mn-rs))}}}   Cancel like terms


{{{1/a}}}   Simplify




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Answer:


So {{{(mn-rs)/(amn-ars)}}} simplifies to {{{1/a}}}. In other words {{{(mn-rs)/(amn-ars)=1/a}}}