\(=\dfrac{144}{27}\cdot\dfrac{18}{84}=\dfrac{3}{14}\cdot\dfrac{16}{3}=\dfrac{16}{14}=\dfrac{8}{7}\)
\(\dfrac{144.18}{84.27}=\dfrac{12.12.2.9}{7.12.3.9}=\dfrac{12.2}{7.3}=\dfrac{24}{21}=\dfrac{8}{7}\)
144x18 16x3 8
---------- = ------ = ---
84x27 14x3 7