Question

Find the LCM and HCF of 45 and 63. Verify the relation between them.

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Answer 1

Answer:

By prime factorisation of 45 and 63, we get,

45 = 3 x 3 x 5

63 = 3 x 3 x 7

LCM = 3² x 5 x 7

        = 315

HCF = 3 x 3

       = 9

We know that,

Product of two numbers = HCF of the two numbers x LCM of the two numbers

In this case,

The product of the two numbers = 45 x 63 = 2835

HCF of the two numbers x LCM of the two numbers = 9 x 315 = 2835

Thus, the relation is verified.

HOPE THIS HELPS...........