Daniel gave 4/5 of his stickers to Javier. Javier’s collection of stickers increased to 64. If Javier had 28 stickers in the beginning, how many stickers did Daniel have in the beginning?

Answer 1

so 4/5 of Daniel's stickers = 64
1/5 of Daniel's stickers = 16
5/5 of Daniel's stickers = 80