LCM overloaded !

@Sandeep Bhardwaj u put up 4 questions with same answers any ways i earned 400 points , anyways keep posting

If LCM of $a$ and $b$ is $L$ , then $L=a\times n=b\times m$ where $n$ and $m$ are integers.

Now if LCM of $\frac{22}{7}$ and $\pi$ exists then $\pi=\frac{22}{7} \times \frac{n}{m}$ . But this can't be true as $\pi$ is an irrational number and $\frac{22}{7} \times \frac{n}{m}$ is rational. Our assumption was wrong therefore LCM of $\frac{22}{7}$ and $\pi$ does not exist.