The reciprocal of number A is (1/3), and the reciprocal of number B is (1/5). What is 15% of the sum of A and B?
甲数的倒数是(1/3)，乙数的倒数是(1/5)，甲、乙两数的和的15%是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / (1/5)</gadget>
<output>5</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">8 * (3/20)</gadget>
<output>6/5 = around 1.2</output>

<result>6/5 = around 1.2</result>