The road repair team repaired a section of road, 25% of the total length was repaired on the first day, and 20% of the total length was repaired on the second day. 50 meters were repaired on the first day, how many meters are left to be repaired?
修路队修一段公路，第一天修了全长的25%，第二天修了全长的20%．第一天修了50米，还剩多少米没有修？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">50 / (1/4)</gadget>
<output>200</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/4) - (1/5)</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">200 * (11/20)</gadget>
<output>110</output>

<result>110</result>