Calculation: (2.5*(4/5))/((1/4)*0.8)-0.75/(3/40)=how much.
计算：(2.5*(4/5))/((1/4)*0.8)-0.75/(3/40)=多少．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2.5 * (4/5)</gadget>
<output>2</output>

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

<gadget id="calculator">(1/4) * 0.8</gadget>
<output>0.2</output>

<gadget id="calculator">2 / 0.2</gadget>
<output>10</output>

<gadget id="calculator">3 / 40</gadget>
<output>3/40 = around 0.075</output>

<gadget id="calculator">0.75 / (3/40)</gadget>
<output>10</output>

<gadget id="calculator">10 - 10</gadget>
<output>0</output>

<result>0</result>