131.2/(1.3+2.3*3)=how much.
131.2/(1.3+2.3*3)=多少．
<gadget id="calculator">2.3 * 3</gadget>
<output>6.9</output>

<gadget id="calculator">1.3 + 6.9</gadget>
<output>8.2</output>

<gadget id="calculator">131.2 / 8.2</gadget>
<output>16</output>

<result>16</result>