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