Answer:
The first fraction at the right of 1 is
or 
Step-by-step explanation:
Given
Marks of 6ths on a number line
Fraction 5/6 just before 1
Required
What fraction is at the right 1
To get the first fraction at the right of 1, we need to get the difference between each fraction;
This is calculated as follows;

Take LCM


This implies that the difference between each mark is
.
To get the first mark at the right of 1;
We simply add the difference to 1;
This implies that;

Take LCM


Convert to mixed fraction

Hence, the first fraction at the right of 1 is
or 