已知曲线\({{C}_{1}}\)的参数方程为\(\,\{\begin{matrix} x=1+\dfrac{1}{2}t \\ y=\dfrac{\sqrt{3}}{2}t \\\end{matrix}(\)为参数\().\)在以坐标原点为极点，轴的正半轴为极轴的极坐标系中，曲线\({{C}_{2}}\)：\(\,{{\rho }^{2}}=\dfrac{12}{3+{si}{{{n}}^{2}}\theta }\)．

\((\)Ⅰ\()\)求曲线\({{C}_{1}}\)的普通方程和\({{C}_{2}}\)的直角坐标方程；

\((\)Ⅱ\()\)若\({{C}_{1}}\)与\({{C}_{2}}\)相交于\(A\)，\(B\)两点，设点\(F\left( 1,0 \right)\)，求\(\dfrac{1}{\left| FA \right|}+\dfrac{1}{\left| FB \right|}\)的值．