[tex]27\ sandwitches\ need\ 12\ pounds\ of\ turkey\\\\
1\ sandwitch\ need\ x\ pounds\ of\ turey\\\\
making\ proportion:\\
27-12\\1-x\\\\cross\ multiplication\\\\
27x=12\ \ \ | divide\ by\ 27\\\\
x=\frac{12}{27}=\frac{4}{9}\\\\
\frac{4}{9}\ pounds\ of\ turkey\ is\ needed\ to\ make\ 2\ sandwitch[/tex]