Calculation: 70.2/(40.5-8.3*3).
计算：70.2/(40.5-8.3*3)．
<gadget id="calculator">8.3 * 3</gadget>
<output>24.9</output>

<gadget id="calculator">40.5 - 24.9</gadget>
<output>15.6</output>

<gadget id="calculator">70.2 / 15.6</gadget>
<output>4.5</output>

<result>4.5</result>