Question

Find the common multiples of 18 and 24 which are less than 80.

Answer 1

In order to find the common multiples, we need to write down first 5 multiples

First 5 multiples of 18:-
18 x 1=18; 18 x 2 = 36; 18 x 3 = 54; 18 x 4 = 72; 18 x 5 = 90;


First 5 multiples of 24:-
24 x 1 = 24; 24 x 2 = 48; 24 x 3 = 72; 24 x 4 = 96;
24 x 5 = 120;

Common multiples less than 80 is only 72.