The given fraction is ,
[tex]\frac{72}{162}[/tex]Write the numerator and the denominator as the product of its prime factors.
[tex]\frac{2\times2\times2\times3\times3}{2\times3\times3\times3\times3}[/tex]Now, eliminate the common factors in both the numerator and the denominator.
[tex]\frac{2\times2}{3\times3}[/tex]Silmplify
[tex]\frac{4}{9}[/tex]So, the