First change it to a mixed number 

 is between 2 and 3, closer to 3.

Draw a number line:

This would be 2 plotted on a number line:

-------------------------------------⚫------------------
-4    -3    -2    -1     0     1     2     3     4     5

This would be 3 plotted on a number line:

-------------------------------------------⚫------------
-4    -3    -2    -1     0     1     2     3     4     5

So to plot  you would estimate about ths 
of the distance from 2 toward 3, like this, and put the 
mark there:

-----------------------------------------⚫--------------
-4    -3    -2    -1     0     1     2     3     4     5 

Edwin