Science and Education Publishing American Journal of Applied Mathematics and Statistics 2328-7292 3 4 2015 08 13 Approximate Controllability of Fractional Stochastic Perturbed Control Systems Driven by Mixed Fractional Brownian Motion 168 176 EN Salah H. Abid Mathematics department, Education College, Al-Mustansiriya University, Baghdad, Iraq Sameer Q. Hasan Uday J. Quaez AJAMS2015347 10.12691/ajams-3-4-7 2015 07 07 2015 07 31 2015 08 13 In this paper, the approximate controllability of nonlinear Fractional order 0<<1 Riemann-Liouville type stochastic perturbed control systems driven by mixed fractional Brownian motion in a real separable Hilbert spaces has been studied by using Krasnoselskii's fixed point theorem, stochastic analysis theory, fractional calculus and some sufficient conditions.