What is 2 4/5 kilometers in a decimal form?
$${\frac{{\mathtt{4}}}{{\mathtt{5}}}} = {\mathtt{0.8}}$$
$${\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\mathtt{0.8}} = {\frac{{\mathtt{14}}}{{\mathtt{5}}}} = {\mathtt{2.8}}$$