已知曲线\(C_{1}\)的参数方程为\( \begin{cases} x=1+ \dfrac {1}{2}t \\ y= \dfrac { \sqrt {3}}{2}t\end{cases}(\)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\(C_{2}\)：\(ρ^{2}= \dfrac {12}{3+\sin ^{2}\theta }\)．
\((\)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\(F(1,0)\)，求\( \dfrac {1}{|FA|}+ \dfrac {1}{|FB|}\)的值．