The L.C.M. of 15 and 9 Share with your friends Share 1 Abhishek Kr. Jha answered this 3 15, 9 5, 3So, L.C.M of 15 and 9 = 3×5×3 = 45 0 View Full Answer Aryan Maheshwari answered this LCM of 15 and 9 is 45. 0 Alimafouzia answered this yes the answer is 45 0 Garima answered this it's 45 0 Japkirat answered this its 453-15,93 - 5,35- 5,1 -1,1 lcm=45 1