A truckload of oranges weighs 24t in total. After selling (3/4) of them, another 4t is shipped in, and (2/5) of the total weight of the oranges is sold. How many tons of oranges are left at this time?
一车橘子共重24t，卖了它的(3/4)后，又运来了4t，又卖了此时橘子总重量的(2/5)，此时橘子还剩多少t．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">24 * (1/4)</gadget>
<output>6</output>

<gadget id="calculator">6 + 4</gadget>
<output>10</output>

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

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">10 * (3/5)</gadget>
<output>6</output>

<result>6</result>