Q2 D of 42 Page 136

Let’s find the L.C.M. of the following algebraic expressions:

11a2bc2, 33a2b2c, 55a2bc2


Factors of 11a2bc2=11×a×a×b×c×c

Factors of 33a2b2c=3×11×a×a×b×b×c


Factors of 55a2bc2=5×11×a×a×b×c×c


LCM is the lowest common multiple, which is the product of all the common factors taken once and the remaining factors as it is.


∴the LCM of 11a2bc2, 33a2b2c, 55a2bc2=165 a2b2c2


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