We have, an =

n

n+1

Substituting n = 1, 2, 3, 4, 5, we get
a1 =

1

1+1

=

1

2

, a2 =

2

2+1

=

2

3

,
a3 =

3

3+1

=

3

4

, a4 =

4

4+1

=

4

5

, a5 =

5

5+1

=

5

6

∴ The first five terms are

1

2

,

2

3

,

3

4

,

4

5

,

5

6

.