How to Determine whether to find HCF or LCM

Asked by  | 6th Mar, 2009, 12:36: PM

Expert Answer:

Be careful in interpreting the word problem

Look for what quantities  to be determined, If the problem asks for maximum  things, like  Find the maximum numbers of rooms required, greatest size of a measuring can, etc  

then we need to find HCF, 

If the problem asks for simultaneous reoccurrence of events then it is LCM.

Answered by  | 6th Mar, 2009, 03:00: PM

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