How many meters is more than 50 meters (1/5)?
比50米多(1/5)是多少米．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">50 * (1/5)</gadget>
<output>10</output>

<gadget id="calculator">50 + 10</gadget>
<output>60</output>

<result>60</result>