Dear student.

Greetings.

The preparations for JEE main examination and CLAT are entirely different. JEE main requires PCM as a base for preparation whereas CLAT requires logical reasoning, Legal aptitude etc. as a base for preparation. So, unless you perpare both well enough, there is no chance of clearing both the examinations at once. You can clear only one examination with proper preparation.

Thank you. All the best.

Both have different Syllabus, CLAT is more concerned about Current affairs and General knowledge and Reasoning while JEE Main tests for PCM knowledge, Its obvious that you will have advantage over Mathematics and Reasoning part , But your final score depends on overall performance and Mathematics and Reasoning will not be very tough so that  others can't solve. So  It all depends on your knowledge of Current affairs and GK.