A pile of coal is 8 tons more than the total (1/4) of the total on the first day, and 12 tons less than the total (1/3) of the second day, leaving 34 tons. How many tons are there in this pile of coal? (Hint: You can draw a graph for analysis)
一堆煤第一天运出总数的(1/4)多8吨，第二天运出总数的(1/3)少12吨，还剩下34吨，这堆煤共有多少吨？(提示：可画图分析)
<gadget id="calculator">34 - 12</gadget>
<output>22</output>

<gadget id="calculator">8 + 22</gadget>
<output>30</output>

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

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/4) - (1/3)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">30 / (5/12)</gadget>
<output>72</output>

<result>72</result>