\begin{align} &\cssId{Step1}{τ = ω_{red}/ω_{mot}}\\[3px] &\cssId{Step2}{ω_{red} = {τ·ω_{mot}}}\\[3px] &\cssId{Step3}{ω_{red} = {τ·n_{mot}·{2π \over 60}}}\\[3px] &\cssId{Step4}{ω_{red} = {0,009·1470·{2π \over 60} = 1,385rad/s}}\\[3px] \end{align}