Two brothers collect stamps, the elder brother has more stamps than the younger brother (1/3), and the younger brother has less stamps than the elder brother
兄弟俩集邮，哥哥的邮票比弟弟多(1/3)，弟弟的邮票比哥哥少多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(1/3) / (4/3)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>