A road is 12 kilometers long, 25% of it was repaired for the first time, and the ratio of the length of the second repair to the first repair is 4:3. How many kilometers are left?
一条路全长12千米，第一次修了它的25%，第二次修的与第一次修的长度比是4：3．还剩下多少千米？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">(1/4) * (4/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/4) - (1/3)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">12 * (5/12)</gadget>
<output>5</output>

<result>5</result>