In order to protect the environment, people advocate "green travel". Mr. Zhang responded positively and went to work by bicycle every day. Her journey from home to school (7/10) is uphill, and (3/10) is downhill. When she goes to work, she walks uphill for 1400 meters. Then, how many meters does she have to walk uphill when she gets home from get off work?
为了保护环境，人们提倡"绿色之行"，张老师积极响应，每天骑自行车上班．她从家到学校的路程中(7/10)是上坡路，(3/10)是下坡路，她上班时上坡路走1400米，那么，她下班回家时要走上坡路多少米？
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">1_400 / (7/10)</gadget>
<output>2_000</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">2_000 * (3/10)</gadget>
<output>600</output>

<result>600</result>