The road construction team plans to build a road with a length of 1200 meters. 15% of the full length was repaired in the first week, and 1/4 of the full length was repaired in the second week. How many meters was repaired less in the first week than in the second week?
修路队计划修一条长1200米的路．第一周修了全长的15%，第二周修了全长的(1/4)．第一周比第二周少修多少米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1_200 * (1/4)</gadget>
<output>300</output>

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1_200 * (3/20)</gadget>
<output>180</output>

<gadget id="calculator">300 - 180</gadget>
<output>120</output>

<result>120</result>