The waterway from Shanghai to Hankou is 1125 kilometers long. A ship has sailed from Shanghai to Hankou (3/5), how many kilometers away from Hankou?
上海到汉口的水路长1125千米．一艘轮船从上海开往汉口，已经行了(3/5)，离汉口还有多少千米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1_125 * (2/5)</gadget>
<output>450</output>

<result>450</result>