4*(3/11)/(3/5)=how much.
4*(3/11)/(3/5)=多少．
<gadget id="calculator">3 / 11</gadget>
<output>3/11 = around 0.272727</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/11) / (3/5)</gadget>
<output>5/11 = around 0.454545</output>

<gadget id="calculator">4 * (5/11)</gadget>
<output>20/11 = around 1.818182</output>

<result>20/11 = around 1.818182</result>