Number Line Position: Identifying the Value at Point ?

Question

What is the missing numebr (?) marked on the number line below?

Let's count how many points, including the number 1, there are on the number line.

Since there are 6 in total, we'll define the 0 point as the fraction:

$\frac{0}{6}$

We'll also define 1 as the following fraction:

$\frac{6}{6}$

Now let's fill in each point on the sequence to discover which numbers are missing:

$\frac{2}{6}$