(1/5) of a number is (1/5), what is this number.
一个数的(1/5)是(1/5)，这个数是多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<result>1</result>