Some stickers are in a packet.
If Adam puts them into groups of 9, there are 4 stickers short.
If Adam puts them into groups of 7, there are 5 stickers short.
Find the smallest possible number of stickers in a packet.
Multiples of 9: 9, 18, 27
Multiples of 9 (-4): 5, 14, 23
Multiples of 7: 7, 14, 21, 28
Multiples of 7 (-5): 2, 9, 16, 23
Smallest possible number of stickers in a packet = 23
Answer(s): 23