The original difference between the two piles of coal is 12 tons. If (1/8) ton is removed from the larger pile and 0.4 tons is removed from the smaller pile, how many tons is the difference between the two piles of coal?
两堆煤原来相差12吨，如果从多的一堆中运走(1/8)吨，从少的一堆中运走0.4吨，这时两堆煤相差多少吨？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">0.4 - (1/8)</gadget>
<output>0.275</output>

<gadget id="calculator">0.275 + 12</gadget>
<output>12.275</output>

<result>12.275</result>