A pair of goods is 60 tons, the first time uses (1/3) of the total amount, and the second time uses (4/5) of the first time, how many tons of goods are used in the two times?
一对货物60吨，第一次用去总数的(1/3)，第二次用去第一次的(4/5)，两次一共用去多少吨货物？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(1/3) * (4/5)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(1/3) + (4/15)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">60 * (3/5)</gadget>
<output>36</output>

<result>36</result>