There is a pile of coal. A certain factory burned (2/5) tons on the first day, and burned more (1/4) tons on the second day than on the first day. How many tons more were burned on the second day than on the first day?
有一堆煤，某工厂第一天烧了(2/5)吨，第二天烧的比第一天多(1/4)，第二天烧的比第一天多多少吨？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">(2/5) * (1/4)</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>