To build a 1200-meter road, it was built on the first day (3/8), and on the second day (1/4). How many meters less was repaired on the second day than on the first day?
修一条1200米的路，第一天修了(3/8)，第二天修了(1/4)，第二天比第一天少修多少米？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(3/8) - (1/4)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1_200 * (1/8)</gadget>
<output>150</output>

<result>150</result>