$\textit{Đáp án + Giải thích các bước giải:}$
$\text{4$\dfrac{5}{6}$ + 2$\dfrac{3}{4}$ x 1$\dfrac{1}{2}$}$
$\text{= $\dfrac{29}{6}$ + $\dfrac{11}{4}$ x $\dfrac{3}{2}$}$
$\text{= $\dfrac{29}{6}$ + $\dfrac{33}{8}$}$
$\text{= $\dfrac{232 + 198}{48}$}$
$\text{= $\dfrac{430}{48}$ = $\dfrac{215}{24}$}$
$\text{→ Chọn A. $\dfrac{215}{24}$}$