What is the addition formula of (2/11)*4?
把(2/11)*4写成加法算式是多少．
<gadget id="calculator">2 / 11</gadget>
<output>2/11 = around 0.181818</output>

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

<result>8/11 = around 0.727273</result>