“…[20][21][22][23][24][25][26][27][28] Solving partial differential equations with fractional derivatives is often more difficult than solving the classical type, for its operator is defined by integral. In the recent year, researchers have developed some iterative methods for solving the nonlinear fractional differential equations, such as Adomian decomposition method, 21,28,29 variational iteration method, [30][31][32] homotopy decomposition method, 33 differential transform method, 34,35 permuturbation iteration transformation method, 36 homotopy-perturbation method, 28,37 homotopy analysis method, [38][39][40] exp-function method, [41][42][43] wavelet method, 44 Khater method, 45 and residual power series method. 46,47 In this paper, we consider the time-fractional Cahn-Hilliard (TFCH) equations of the fourth and sixth order given, respectively, as follows:…”