A farm uses tractors to plow 1,840 hectares, 1/4 of which has been plowed, and the rest is plowed by 2 tractors in 5 days.
某农厂用拖拉机耕地1840公顷，已经耕完(1/4)，剩下的用2台拖拉机5天耕完，平均每台每天耕地多少公顷？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) / 2 / 5</gadget>
<output>3/40 = around 0.075</output>

<gadget id="calculator">1_840 * (3/40)</gadget>
<output>138</output>

<result>138</result>