Answer
The first five terms are:
$s_1= \dfrac{1}{3} \\ s_2=\dfrac{1}{2} \\ s_3=\dfrac{3}{5} \\s_4= \dfrac{2}{3} \\s_5 =\dfrac{5}{7}$
Work Step by Step
We are given that {$a_n$} $=\dfrac{n}{n+2}$
In order to determine the first five terms, we will have to substitute $n=1,2,3,4,5$ into the given sequence {$a_n$}:
$s_1= \dfrac{1}{1+2}=\dfrac{1}{3} \\ s_2= \dfrac{2}{2+2}=\dfrac{1}{2} \\ s_3= \dfrac{3}{3+2}=\dfrac{3}{5} \\s_4= \dfrac{4}{4+2}=\dfrac{2}{3} \\s_5 = \dfrac{5}{5+2}=\dfrac{5}{7}$