The distance between A and B is 750 kilometers, and a car has traveled the entire distance (4/5) from A to B. At this time, how many kilometers are there to go from B?
甲地到乙地相距750千米，一辆汽车从甲地驶向乙地，已经行了全程的(4/5)．这时离乙地还有多少千米没有行？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">750 * (1/5)</gadget>
<output>150</output>

<result>150</result>