Akram, MuhammadUllah, InayatAllahviranloo, Tofigh2022-02-022022-02-022022Akram, M., Ullah, I., & Allahviranloo, T. (2022). A new method for the solution of fully fuzzy linear programming models. Computational and Applied Mathematics, 41(1) doi:10.1007/s40314-021-01756-42238-3603https://doi.org/10.1007/s40314-021-01756-4https://hdl.handle.net/20.500.12713/2452In this study, we first show that the existing arithmetic operations of trapezoidal fuzzy numbers do not satisfy the basic properties. Then, for trapezoidal fuzzy numbers, we define new arithmetic operations. Furthermore, we demonstrate that the existing Simplex method for addressing fully fuzzy linear programming problems has some drawbacks. Finally, we provide a new strategy for solving fully fuzzy linear programming problems and compare our results with the existing methods. © 2022, The Author(s) under exclusive licence to Sociedade Brasileira de Matemática Aplicada e Computacional.eninfo:eu-repo/semantics/closedAccessArithmetic OperationsFuzzy Linear ProgrammingTrapezoidal Fuzzy NumbersArticle411WOS:0007454644000042-s2.0-85123434717Q110.1007/s40314-021-01756-4Q2