18
Jun

There are two ways to find the LCM given in the textbook (Basic Mathematical Skills with Geometry, 8th Ed. by Baratto and Bergman) Let's look at example #4 on page 192 in a little more detail. One way of doing this problem would be the 'Listing Method'. So, to find the LCM of 10 and 18, we could do the following: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, etc... 18, 36, 54, 72, 90, 108, 126, 144, 162, 180, etc... Note that 90 is the LCM, but 180 is also in common, it's…