pile of coal weighs 27 tons, and a factory uses up (1/4) of the total amount in 3 days. Then, if the total amount is used in 5 days ((())/(())), how many tons are used in 5 days?
一堆煤重27吨，某厂3天用去总数的(1/4)，那么，5天用去总数的((())/(()))，5天一共用去多少吨．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) / 3</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 5 * 27</gadget>
<output>45/4 = around 11.25</output>

<result>45/4 = around 11.25</result>