Calculation: (9/2)*8-16*(1/2)*4.
计算：(9/2)*8-16*(1/2)*4．
<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">(9/2) * 8</gadget>
<output>36</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">16 * (1/2) * 4</gadget>
<output>32</output>

<gadget id="calculator">36 - 32</gadget>
<output>4</output>

<result>4</result>