A new method called BLMO DEA was developed to measure the performance of bank branches in terms of profit and operational efficiency at the same time. This method helps banks to improve their overall efficiency by focusing on two important aspects simultaneously. By using a special mathematical approach called fuzzy fractional goal programming, the researchers were able to show that this method can provide a more detailed and accurate measure of efficiency for each bank branch. The results from a real case study of 45 bank branches supported the effectiveness of this new approach.