The distance between A and B is 280 kilometers. If you draw it on a drawing with a scale of (1/8000000), how many centimeters should you draw?
甲乙两地相距280千米，把它画在比例尺是(1/8000000)的图纸上，应画多少厘米．
<gadget id="calculator">1 / 8_000_000</gadget>
<output>1/8_000_000 = around 0</output>

<gadget id="calculator">280 * 100_000 * (1/8_000_000)</gadget>
<output>7/2 = around 3.5</output>

<result>7/2 = around 3.5</result>