A train travels from A to B for the whole journey (5/9), and then travels at a speed of 120 kilometers per hour for 3 hours. What is the length in miles from A to B?
一列火车从甲地开往乙地，行了全程的(5/9)后，又以每小时120千米的速度行了3小时．从甲地到乙地全长多少千米．
<gadget id="calculator">120 * 3</gadget>
<output>360</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1 - (5/9)</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">360 / (4/9)</gadget>
<output>810</output>

<result>810</result>