The reciprocal of a number is (3/4), what is (1/2) of this number.
一个数的倒数是(3/4)，这个数的(1/2)是多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / (3/4)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(4/3) * (1/2)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>