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Question: Find the LCM of 9 and 33 using a Venn diagram.


A ) 33
B ) 297
C ) 99
D ) 3

Steps to derive

 [Write the prime factors for 9 and 33.]
1 9 = 1 x 3 x 3
33 = 1 x 3 x 11

2 Represent all the prime factors of 9 and 33 in a Venn diagram.


 [Multiply all the factors in the Venn diagram.]
3 3 x 3 x 11 = 99

4 The LCM of 9 and 33 is 99.



Hence the right answer is Option C

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