The fuel carried by a plane can be used for up to 8.8 hours. When the plane goes with the wind, it can fly 1800 kilometers per hour. fly?
一架飞机所带燃料最多可以用8.8小时，飞机去时顺风，每小时可飞1800千米，返回时逆风，每小时可飞1500千米，这架飞机最多飞出多少千米就需要往回飞？
<gadget id="calculator">1 / 1_800</gadget>
<output>1/1_800 = around 0.000556</output>

<gadget id="calculator">1 / 1_500</gadget>
<output>1/1_500 = around 0.000667</output>

<gadget id="calculator">(1/1_800) + (1/1_500)</gadget>
<output>11/9_000 = around 0.001222</output>

<gadget id="calculator">8.8 / (11/9_000)</gadget>
<output>7_200</output>

<result>7_200</result>