The two numbers of A and B are reciprocals of each other, what is the product of (3/5) of the two numbers of A and B?
甲、乙两数互为倒数，甲、乙两数积的(3/5)是多少．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 * (3/5)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>