If you know what happens in 2/3 of a minute, multiply that number by 3/2 to see what happens in a minute. This is true because you have the proportion
[tex]5\dfrac{1}{4}\div \dfrac{2}{3}=x\div 1[/tex]
And solving for x you have
[tex]\dfrac{2}{3}x=5\dfrac{1}{4} \iff x=5\dfrac{1}{4}\cdot \dfrac{3}{2}[/tex]
Getting rid of mixed fraction, we have 5 1/4=21/4, and thus the final answer is
[tex]\dfrac{21}{4}\cdot\dfrac{3}{2}=\dfrac{63}{8}[/tex]
