lowest common multiple of 6 and 8?

six and eight are both divisable by 2 that should be your lowest commen multiple.

The "lcm'   is the same as the "common denominator"

6 = 2 * 3

8 = 2^3

Selecting each different factor along with its highest power, we have :

3 * 2^3   =

3 * 8   =

24

6*4=24 8*3=24

Answer=24