For the case in which the stars are divided into 3 equal groups you have
Then, there are 2 stars in each group.
For the case in which the stars are divided into 2 equal groups you have
Then, there are 3 stars in each group.
Now, 13 of 6 is the fraction
It remains like this because we cannot simplify more, and the result of dividing these two numbers is not an integer.
Finally, 12 of 14 is the fraction
Then,