How much less (2/9) of 27 than (1/2) of 16.
27的(2/9)比16的(1/2)少多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">16 * (1/2)</gadget>
<output>8</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(2/9) / 1</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">27 * (2/9)</gadget>
<output>6</output>

<gadget id="calculator">8 - 6</gadget>
<output>2</output>

<result>2</result>