The perimeter of a rectangle is $13\;cm$ and its width is $ \large\frac{11}{4}$cm . Find its length

Question

$\begin{array}{1 1} \large\frac{11}{4} \\ \large\frac{15}{6} \\ \large\frac{15}{4} \\ \large\frac{13}{4} \end{array} $