
Bob A. answered 08/02/14
Tutor
4.9
(127)
20 Years Making Science and Maths Understandable and Interesting!
If one person is to get 3 parts and another 5 parts, then you need to divide the total into 8 parts.
After dividing it into parts you give each person the right number of parts - 3 or 5.
What you have done by doing this is give one person 3/8 of the total and the other 5/8.
This is what you do when cooking, painting, mixing milk and cream to make ice cream and many other types of chemistry and building projects.