If the reciprocal of a number is half of (3/5), what is the number.
如果一个数的倒数是(3/5)的一半，那么这个数是多少．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">(3/5) * (1/2)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 / (3/10)</gadget>
<output>10/3 = around 3.333333</output>

<result>10/3 = around 3.333333</result>