What is the product of (1/7) and its reciprocal.
(1/7)与它的倒数的积是多少．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 / (1/7)</gadget>
<output>7</output>

<gadget id="calculator">(1/7) * 7</gadget>
<output>1</output>

<result>1</result>