For a batch of fruits, (1/4) of the total number is removed for the first time, and (1/2) of the remaining number is removed for the second time, and ((())/(())) of the total amount remains.
一批水果，第一次运走总数的(1/4)，第二次运走剩下的(1/2)后，还剩总数的((())/(()))．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(3/4) * (1/2)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (1/4) - (3/8)</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>