Question

what is the LCM of 3ab , 9a2e , 12a2c2​

Answer 1

Answer:

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Step-by-step explanation:

HCF :

For the given two or more numbers HCF is the greatest number that divides each of the numbers

LCM :

For the given two or more numbers LCM is the least number which is exactly divisible by each of the given numbers

EVALUATION

Here the given expressions are 3ab , 9a²c , and 12a²c²

First expression

= 3ab

= 3 × a × b

Second expression

= 9a²c

= 3 × 3 × a × a × c

Third expression

= 12a²c²

= 2 × 2 × 3 × a × a × c × c

Hence the required LCM

= 2 × 2 × 3 × a × a × c × c × 3 × b

= 36a²bc²