Apet shop manager wants the same number of birds in each cage. he wants to use as few cages as possible, but can only have one type in each cage. if he has 42 parakeets and 18 canaries how many birds will he put in each cage

In order to find out the answer to this question you need to find out about how many birds can fit in a cage.
After obtaining this information, you can easily divided the number of birds with the maximum amount of birds in the cage (since he only want one species per cage)

hope this helps