Question

what is the lcm of 12 and 30 16 and 24 9 and 15

Answer 1

12and30=3. 16and24=4. 9and15=3

Answer 2

factor each and group them


lcm of 12 and 30
12=2*2*3
30=2*3*5
lcm=2*2*3*5=60


lcm of 16 and 24
16=2*2*2*2
24=2*2*2*3
lcm=2*2*2*2*3=48


9 and 15
9=3*3
15=3*5
lcm=3*3*5=45