Alternative Arithmetic of Pentagonal Fuzzy Numbers International Journal of Mathematics Trends and Technology (IJMTT) © 2020 by IJMTT Journal Volume-66 Issue-12 Year of Publication : 2020 Authors : Intan Arfina, Mashadi 10.14445/22315373/IJMTT-V66I12P505 MLA Style: Intan Arfina, Mashadi  "Alternative Arithmetic of Pentagonal Fuzzy Numbers" International Journal of Mathematics Trends and Technology 66.12 (2020):28-36.

APA Style: Intan Arfina, Mashadi(2020). Alternative Arithmetic of Pentagonal Fuzzy Numbers  International Journal of Mathematics Trends and Technology,28-36.

Abstract
In this paper, we introduce the definition of positive and negative fuzzy numbers based on the concept of area of fuzzy numbers on the right side of r-axis and the left side of r-axis (in the first quadrant and the second quadrant). From the concept of positive and negative fuzzy numbers, an alternative arithmetic for pentagonal fuzzy numbers is constructed. Then the multiplication form of pentagonal fuzzy numbers can be obtained in some cases. Finally, from the multiplication operations, it can later be applied to determine the multiplication identity and inverse of pentagonal fuzzy numbers.

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Keywords : Fuzzy Number, Arithmetic Fuzzy Number, Pentagonal Fuzzy Number.