The per capita annual income in Beijing is 75,000 yuan. Xiao Ming's sister also works in Beijing. Her total annual income is 50,000 yuan. What fraction of the annual income of Xiao Ming's sister is equivalent to Beijing's per capita annual income?
北京市人均年收人为7.5万元，小明的姐姐也在北京工作，她年收入总共为5万元，小明姐姐的年收人相当于北京人均年收人的几分之几？
<gadget id="calculator">5 / 7.5</gadget>
<output>0.666667</output>

<result>0.666667</result>