A pile of sand has a total of 3 tons. (3/5) tons were removed on the first day, and the remaining (3/4) was removed on the second day. How many tons were removed on the second day?
一堆沙共3吨，第一天运走了(3/5)吨，第二天运走了余下的(3/4)，第二天运走了多少吨？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3 - (3/5)</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(12/5) * (3/4)</gadget>
<output>9/5 = around 1.8</output>

<result>9/5 = around 1.8</result>