Explanation:
5 1/3 means 5 and 1/3 more.
So first we count 5 unit on right side of 0. Then for 1/3 we will divide the length between 5 and 6 into three equal parts and select only 1 part
That location will be exact location of the point 5 1/3.
Repeat same process for -5 2/3 on left side of 0 because -5 2/3 is a negative number.
Check the attached graph for correct locations.