The LCM of 18 and 15 is 90.
no more explanation ate?
Im sorry. No more explanation nah. If you want, ill give you some
my pleasure if you would do. :) i'm only in 5th grade so i didn't know this so i want to learn.
need explanation if you want your answer to stay and not deleted by those strict moderator. haha
Ahm... You can just add 18 by 18 and 15 by 15 to get the answer
90 is the LCM you should add 18 by itself...........and you should add 15 by itself ........until you get the similar number

can you show me that method. i'm afraid that your answer will be deleted soon if you won't expand your explanation through details.