Given:
Bill's weigh: 90 1/2
Sam's weigh: 93 3/4
To find the difference, let's compare the integers and the fractions:
[tex]\begin{gathered} Sam^{\prime}s\text{ }weigh\text{ - }Bill^{\prime}s\text{ }weigth: \\ 93\text{ }\frac{3}{4}-90\text{ }\frac{1}{2} \\ (93-90)\text{ \lparen}\frac{3}{4}-\frac{1}{2}) \\ 3\text{ }\frac{3-2*1}{4} \\ 3\text{ }\frac{3-2}{4} \\ 3\text{ }\frac{1}{4} \end{gathered}[/tex]Answer:
Sam weighs 3 1/4 more than Bill.