Find the greatest common factor of each flower:
White roses = 54 = 1, 2 , 3, 6, 9, 18, 27, 54
Red roses = 72 = 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
Pink roses = 108 = 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
The common factors of all three are: 1, 2, 3, 6, 9, 18.
The greatest common factor is 18, so he can make 18 bouquets.
Divide the total red roses by 18:
72 / 18 = 4
There will be 4 red roses in each bouquet.
