Question

Molly baked 24 blueberry muffins, 28 banana muffins, and 12 apple muffins. She wants to package them for a bake sale. Each package will have the same number of each kind of muffin. What is the greatest number of packages that Molly can make if she wants to use all of the muffins

Answer 1

Find the highest common factor 
12 = 1, 2, 3, 4, 6, 12
24 = 1, 2, 3, 4, 6, 8, 12, 24
28 = 1, 2, 4, 7, 14, 28
4 bags is needed 
3 apple, 6 blueberry, 7 banana in each bag
(3 x 4 = 12 apple) (6 x 4 - 24 blueberry) (7 x 4 = 28 banana)