A pile of goods is 75 tons, (1/3) is transported away for the first time, and the rest (2/5) is transported away for the second time, how many tons are transported for the second time?
一堆货物75吨，第一次运走它的(1/3)，第二次运走余下的(2/5)，第二次运走多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/3) * (2/5)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">75 * (4/15)</gadget>
<output>20</output>

<result>20</result>