Answer
See below
Work Step by Step
$$a_1=\frac{1}{1+1} = \frac{1}{2}$$
$$a_2=\frac{2}{2+1} = \frac{2}{3}$$
$$a_3=\frac{3}{3+1} = \frac{3}{4}$$
$$a_4=\frac{4}{4+1} = \frac{4}{5}$$
$$a_5=\frac{5}{5+1} = \frac{5}{6}$$
$$a_6=\frac{6}{6+1}=\frac{6}{7}$$