and B are on the same mountain road, from A to B, A travels (4/3) kilometers per hour, and B travels (3/4) kilometers per hour. As a result, A is ahead of B by (7/3) Arrive in an hour, when A arrives, how many kilometers has B traveled?
甲乙二人在同一条山路，从A地去B地，甲每小时行(4/3)千米，乙每小时行(3/4)千米，结果甲比乙提前了(7/3)小时到达，当甲到达时，乙行了多少千米．
<gadget id="calculator">7 / 3</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(3/4) / (4/3)</gadget>
<output>9/16 = around 0.5625</output>

<gadget id="calculator">1 / (9/16)</gadget>
<output>16/9 = around 1.777778</output>

<gadget id="calculator">(16/9) - 1</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">(7/3) / (7/9)</gadget>
<output>3</output>

<gadget id="calculator">3 * (3/4)</gadget>
<output>9/4 = around 2.25</output>

<result>9/4 = around 2.25</result>