Wednesday, July 16, 2014

Relationship between H.C.F and L.C.M of Two Numbers


The relationship between H.C.F and LCM is really easy to find once you get the point. So for example if we have the two numbers 6 and 9 we first have to find the LCM of each of the two numbers then the H.C.F of each number as well:

6= 6, 12, 18, 24, 30
9=9, 18, 27, 36, 45

6=2 x 3
9=3 x 3

So now we know that the LCM of 6 and 9 is 18 and the HCF of 6 and 9 is 3 so the theory is that:

=6x9=54 and 18x3=54
Now try some of these and make sure to watch the video on YouTube.
Sheet 1 What is the Relationship between HCF and LCM

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