“…Fractional calculus has many applications in physics, statistics, engineering and electrochemistry. Many phenomena in these fields modeled using differential equations of fractional order, especially the derivative with respect to the time (Kamke, 1959;Polyanin and Zaitsev, 2003;Soare et al, 2008;Mak and Harko, 2013;Cang et al, 2009;Tan and Abbasbandy, 2008;Abbasbandy, 2006a;Khalil et al, 2014;Aminikhah and Hemmatnezhad, 2010;Khan et al, 2011).…”