The cargo ship Yellow River sailed from port A to port B, and has sailed 85 kilometers. How many kilometers is this cargo ship sailing from port B to port B (5/7)?
黄河号货轮从甲港开往乙港，已经航行了85千米，正好航行了两港航道的(5/7)这只货轮离乙港还有多少千米？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">85 / (5/7)</gadget>
<output>119</output>

<gadget id="calculator">119 - 85</gadget>
<output>34</output>

<result>34</result>