2 times a number is 4 more than 55 (3/11), what is this number?
一个数的2倍比55的(3/11)多4，这个数字是多少？
<gadget id="calculator">3 / 11</gadget>
<output>3/11 = around 0.272727</output>

<gadget id="calculator">55 * (3/11)</gadget>
<output>15</output>

<gadget id="calculator">15 + 4</gadget>
<output>19</output>

<gadget id="calculator">19 / 2</gadget>
<output>19/2 = around 9.5</output>

<result>19/2 = around 9.5</result>