To build a road, what has been repaired is not repaired (3/4). There are still 120 meters left unrepaired. How long is this road in meters?
修一条公路，已修的是未修的(3/4)．没有修的还有120米，这条路全长多少米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">120 * (3/4)</gadget>
<output>90</output>

<gadget id="calculator">90 + 120</gadget>
<output>210</output>

<result>210</result>