The younger brother is shorter than the elder brother (1/6), and the height of the younger brother is that of the elder brother ((())/(())).
弟弟比哥哥矮(1/6)，弟弟的身高是哥哥的((())/(()))．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>