There is a pile of sand that removes 5.4 tons, and the remaining weight is 0.6 tons less than the original (3/4). How many tons is this pile of sand originally?
有一堆沙运走5.4吨，余下的重量比原来的(3/4)少0.6吨，这堆沙原来有多少吨？
<gadget id="calculator">5.4 - 0.6</gadget>
<output>4.8</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">4.8 / (1/4)</gadget>
<output>19.2</output>

<result>19.2</result>