What is the answer of 2 /3/4 there are no brackets ?(/ means divide )

One cannot validly simplify in a universally accepted manner the expression A/B/C/D, so such expressions need to be avoided. If appropriate bracketing symbols are included to disambiguate the expression, then it should be quite straightforward to simplify the expression. Because it causes ambiguity.

Else, by using the BODMAS and theory order of division operator / operator is always solved from left to right. Hence, it can be solved by solving 2/3 first and then the result id divided by 4.