The least common multiple (or LCM) of 9 and 12 is 36

Carl285

[latex]Lets \ Find \ the \ Least \ Common \ Multiple \ (LCM) \ of \ 4 \ and \ 30[/latex]
[latex]|Solve \ by \ using \ Prime \ Factors|[/latex]
[latex]List \ all \ prime \ factors \ of \ each \ denominator,[/latex][latex] and \ find \ the \ union \ of \ these \ primes.[/latex]
[latex]9:3,3[/latex]
[latex]12: 2,2,3[/latex]
[latex]Therefore, the \ LCM \ is \ 2*2*3*3=36 [/latex]