The formula that expresses the proportional relationship between x and y (both x and y are not 0) is x=y/how much
表示x、y(x与y均不为0)成正比例关系的式子是x=y/多少
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>