There are two piles of coal, of which pile B occupies (3/7), and later some coal is transported into pile B, and pile A is more than pile B (1/5). It is known that the two piles of coal A and B originally weighed 126 tons in total, how many tons do the two piles of coal weigh together now?
两堆煤，其中乙堆占(3/7)，后来又运来一部分煤放入乙堆，这时甲堆比乙堆多(1/5)．已知甲、乙两堆煤原来共重126吨，现在两堆煤共重多少吨．
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">126 * (4/7)</gadget>
<output>72</output>

<gadget id="calculator">126 * (3/7)</gadget>
<output>54</output>

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

<gadget id="calculator">(1/5) * 126 * (3/7)</gadget>
<output>54/5 = around 10.8</output>

<gadget id="calculator">72 - 54 - (54/5)</gadget>
<output>36/5 = around 7.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(36/5) / (6/5)</gadget>
<output>6</output>

<gadget id="calculator">126 + 6</gadget>
<output>132</output>

<result>132</result>