The reciprocal of a number is (7/2), what is (7/2) of this number.
一个数的倒数是(7/2)，这个数的(7/2)是多少．
<gadget id="calculator">7 / 2</gadget>
<output>7/2 = around 3.5</output>

<gadget id="calculator">1 / (7/2)</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(2/7) * (7/2)</gadget>
<output>1</output>

<result>1</result>