Y.A. Amer, A.M.S. Mahdy, H.A.R. Namoos, Reduced Differential Transform Method for Solving Fractional-Order Biological Systems, Journal of Engineering and Applied Sciences, Volume 13,Issue 20, 2018, Pages 8489-8493, ISSN 1816-949x, jeasci.2018.8489.8493, (https://makhillpublications.co/view-article.php?doi=jeasci.2018.8489.8493) Abstract: In this study, we want to find the approximate solutions for fractional-order biological systems by using Reduced Differential Transform Method (RDTM). The fractional derivatives are described in the Caputo sense. This method is easy to work out as it gives us very accurate solutions for solving fractional-order biological systems all the results obtained are excellent through our use of a program Maple 14. Keywords: Biological systems;Caputo derivative;reduced differential transform;fractional-order;results obtained;accurate solutions