Reduction of fractional differential equation (FDE) to ordinary differential equation (ODE)

In this paper, Will show that how the solution of the fractional differential equation system can be converted into a problem in ordinary differential equation in two method. With this methods the only time the calculation fractional differential equation enters in to the picture is in the calculation of fractional derivatives of known functions.To reach this thing we will use the Laplace transformation in first method and the convolution of the concept of fractional green