Question

A wheel made 204 revolutions at 13 2/5 revolutions per minute. How many minutes did it rotate?

Answer 1

`\bf 204\textit{ revolutions at }13(2)/(5) r/min \implies \cfrac{204\ r}{13(2)/(5)\ (r)/(min)}\implies \cfrac{204\ r}{(67\ r)/(5\ min)} \\\\\\ \cfrac{204\ r}{1}\cdot \cfrac{5\ min}{67\ r}\implies \boxed{?}`