Calculation: 1.28-3/11-(2/11)*4=how much.
计算：1.28-3/11-(2/11)*4=多少．
<gadget id="calculator">3 / 11</gadget>
<output>3/11 = around 0.272727</output>

<gadget id="calculator">2 / 11</gadget>
<output>2/11 = around 0.181818</output>

<gadget id="calculator">(2/11) * 4</gadget>
<output>8/11 = around 0.727273</output>

<gadget id="calculator">1.28 - (3/11) - (8/11)</gadget>
<output>0.28</output>

<result>0.28</result>