The father and son raced along the Jiangbin Park. When the father ran to the full distance (3/4), the son had already run to the full distance (2/3). At this time, the distance between the father and the son was 150 meters. If the respective speeds remain the same, when the father runs to the finish line, how far is the son from the finish line?
父子二人沿江滨公园赛跑，当父亲跑到全程的(3/4)时，儿子已跑到了全程的(2/3)，这时父子之间相距150米．如果各自的速度不变，当父亲跑到终点时，儿子离终点还有多少米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/4) - (2/3)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">150 / (1/12)</gadget>
<output>1_800</output>

<gadget id="calculator">(2/3) / (3/4)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">1 - (8/9)</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1_800 * (1/9)</gadget>
<output>200</output>

<result>200</result>