Finding the Least Common Multiple of Two Numbers

Finding the Least Common Multiple (LCM) of a set of numbers is a key skills for math proficiency.  One specific area that LCM comes into play is when adding or subtracting fractions and mixed-numbers.  When an LCM of denominators is being determined it is referred to as a Least Common Denominator or LCD.  Below I have included a decision tree for use when trying to determine the LCM/LCD of two numbers.  Hopefully you can use it in your current and/or future math applications.