The construction site needs to transport a batch of cement, 56 tons have already been transported, and the remaining 30% have not been transported. How many tons is this batch of cement?
建筑工地要运进一批水泥，已经运来56吨，还剩30%没有运．这批水泥有多少吨？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 - (3/10)</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">56 / (7/10)</gadget>
<output>80</output>

<result>80</result>