The speed of the train last year was 180 km/h, and this year the speed increased by 20%. What is the speed of the train this year?
火车去年的速度是180千米/时，今年提速20%，今年火车速度是多少？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">180 * (6/5)</gadget>
<output>216</output>

<result>216</result>