If (1/4) of the full length is cut off from a wooden stick, exactly (1/4) meter is cut off, how many meters are left on the wooden stick.
一根木棒截去全长的(1/4)，正好截去(1/4)米，这根木棒还剩多少米．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>