A number (3/4) is 2.2 less than 16, find this number.
一个数的(3/4)比16少2.2，求这个数．
<gadget id="calculator">16 - 2.2</gadget>
<output>13.8</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">13.8 / (3/4)</gadget>
<output>18.4</output>

<result>18.4</result>