If the grammar is of the form A -> A alpha / beta;
then it is causing left recursion . To remove the left recursion do the steps as follows.
A ->beta A';
A' -> alpha A';
A' -> epsilon;
example: E -> E+T/T
T -> T*F/F
F -> id
first two stmts contains left recusion so remove it
here A=E; alpha=+T and beta=T so,
E -> TE'
E' ->+TE'/epsilon
T -> FT'
T -> *FT'/epsilon