Algebra 2
posted by Quinisha .
What are the dimensions of the smallest square that you can make using 18in. by 24in. rectangular tiles?
A. 36in. by 36in.
B. 144in. by 144in.
C. 60in. by 60in.
D. 72in. by 72in.

This is like finding the LCM for 18 and 24 which would be 72
so the smallest square is 72 by 72
you would need 12 tiles, laid out in 3 rows and 4 columns, each row 24 inches and each column 18 inches 
Thanks so much!!! I never understood how to do this, now I do :)