α and b are reciprocals of each other, ((α)/2)/(3/(b))=how much.
α与b互为倒数，((α)/2)/(3/(b))=多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>