Only three ways...
Child 1 gets 4, child 2 & 3 get 3 each
Child 2 gets 4, child 1 & 3 get 3 each
Child 3 gets 4, child 1 & 2 get 3 each
Jason is a third child who turned in shadow children, illegal third children, in order to save his own life and Nina's (Elodie).
Among the Betrayed is actually the third book in Margaret Peterson Haddix's "Shadow Children" series. The correct order of the books is: Among the Hidden, Among the Impostors, Among the Betrayed, Among the Barons, etc.
Third children are still illegal in some places. Though if your family with three or more children moves to those places, government won't do anything because your family was already there.
One third divided by two and one third = 1/7
90 divided by one third = 270
Among the Hidden is a dystopian science fiction novel by Margaret Peterson Haddix. Imagine a world where there is severe penalties for a third child. Third children are to be killed and anyone harboring them is also subject to death.
90
one fifth divided by one third is 3 fifths
45 multiplied by one-third = 15; 45 divided by one-third = 135.
14 divided by one third = 42/1 or 42
Ten to the third power divided by 1,024 = 0.9765625
One third divided by seven = 1/21