A road has been built (3/5) kilometers, which is equivalent to the remaining (1/2). How many kilometers is this road?
一条公路，已经修了(3/5)千米，相当于剩下的(1/2)，这条公路长多少千米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(3/5) / (1/2)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) + (3/5)</gadget>
<output>9/5 = around 1.8</output>

<result>9/5 = around 1.8</result>