Question

Hamburgers come packed 12 in a package. Hamburger buns come packed 10 in a package. If we want one hamburger for each bun for a barbecue, with none left over, what is the least amount of packages of each we need to buy?

Answer 1

5 hamburger packages and 6 bun packages

Explanation:

It is asking for the highest common multiple of 12 and 10. the first time a multiple of 12 is divisible by 10 is at 12x5, which is 60. now divide 60 by 12 and 10, 5 and 6.