Abstract: In this work, we amplify a reliable modification of the Adomian decomposition method as provided in [1, 2, 3] by introducing the reduced form of the Adomian polynomial to replace the original polynomials for handling the nonlinear components and subsequently we applied it to fractional nonlinear integro-differential equation of the Volterra type to observe the results produce by the reduced form of the polynomials as compared to the original polynomials.