If a is the reciprocal of (1/5), then what is (3/5) of a.
如果a是(1/5)的倒数，那么a的(3/5)是多少．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">5 * (3/5)</gadget>
<output>3</output>

<result>3</result>