(1/5) of a number is (1/2), and 25% of it is ________.
一个数的(1/5)是(1/2)，它的25%是________．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/2) / (1/5)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(5/2) * (1/4)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>