25+((2/5)*0.75+((1/2)+□)*3)/0.3=111, how much should be filled in□.
25+((2/5)*0.75+((1/2)+□)*3)/0.3=111，□应填多少．
<gadget id="calculator">111 - 25</gadget>
<output>86</output>

<gadget id="calculator">86 * 0.3</gadget>
<output>25.8</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * 0.75</gadget>
<output>0.3</output>

<gadget id="calculator">25.8 - 0.3</gadget>
<output>25.5</output>

<gadget id="calculator">25.5 / 3</gadget>
<output>8.5</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">8.5 - (1/2)</gadget>
<output>8</output>

<result>8</result>