Ms. booth has 16 red buttons and 24 blue buttons. she is making finger puppets. each puppet has the same number of blue buttons and red buttons. how many puppets can she make if she uses all of the buttons?

Well to find out how many puppets she can make if she uses all of the buttons, you will have to find the greatest common factor between 16 and 24. 
Which is 8. She will be able to make 8 puppets if she uses all of the buttons on the puppets so that each of them has the same number of blue and red buttons

Hope this helps :)