How did 20 come lcm is 10 Share with your friends Share 0 Pabita Mahato answered this 0 View Full Answer Mrinmoyee Bhattacharjee answered this Your question I not clear to me pls recheck it 0 Mrinmoyee Bhattacharjee answered this It will be is instead of l 0 Prakamya Prakash Sud answered this Over here lcm is 20 but it should be 10 plz explain 0