4 large trucks transported 80 tons of coal 5 times, and 3 small trucks transported 36 tons of coal 8 times. Now there are 77 tons of coal, how many times are transported by a big truck and a small truck at the same time.
4辆大卡车5次运煤80吨，3辆小卡车8次运煤36吨．现在有煤77吨，用一辆大卡车和小卡车同时运多少次运完．
<gadget id="calculator">80 / 4 / 5</gadget>
<output>4</output>

<gadget id="calculator">36 / 3 / 8</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">4 + (3/2)</gadget>
<output>11/2 = around 5.5</output>

<gadget id="calculator">77 / (11/2)</gadget>
<output>14</output>

<result>14</result>