Answer: Yes
Step-by-step explanation:
[tex]1\dfrac{1}{3}\ \text{can be written as an improper fraction}=\dfrac{4}{3}\\\\\text{So, the question is "Can}\ \dfrac{4}{3}\ \text{be divided into 4 equal parts?"}\\\\\dfrac{4}{3}\div 4\qquad \rightarrow \qquad \dfrac{4}{3}\times \dfrac{1}{4}\qquad = \qquad \dfrac{1}{3}\\\\\text{Each of the 4 people will get}\ \dfrac{1}{3}\ \text{pound of trail mix.}[/tex]