Can't see the graph can you make it more clear?
You can multiply 16<span> by 3 (the only prime factor of </span>24<span> not shared by </span>16), to find the LCM<span>: 3 * </span>16<span> = 48</span>
-- So 48 is the answer
(-5)(-9) because a negative times a negative equals a positive.