What is the product of all the proper fractions whose unit of fraction is (1/4).
分数单位是(1/4)的所有真分数的积是多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(1/4) * (1/2) * (3/4)</gadget>
<output>3/32 = around 0.09375</output>

<result>3/32 = around 0.09375</result>