What is the difference between 2 and the reciprocal of (2/3).
2和(2/3)的倒数的差是多少．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">2 - (3/2)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>