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Addition of Rational Numbers

What is the L...

Question

What is the LCM of 9 and 12?

A

12

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B

72

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C

36

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D

18

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Solution

The correct option is C 36
$\begin{matrix} 3 & 9, 12 3 & 3, 4 2 & 1, 4 2 & 1, 2 1, 1 \end{matrix}$

LCM = 3 × 3 × 2 × 2
= 36

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