Pencils come in packs of 8.erasers come in packs of 10.what is the smallest number of packs of each to have exactly the same number of pencils and erasers

Step-by-step explanation:

The smallest number of packs you can have is

So we need to find the least common multiple of 8 and 10.

The LCM of 8 and 10 is 40.

Let's prove it:

40 / 8 = 5

40 / 10 = 4

So it is the LCM!

We also now know, that you will need 5 packs of pencils, and 4 packs of erasers to have the same amount of each!