Evaluation: (((9*6+2))/13)=how much.
求值：(((9*6+2))/13)=多少．
<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<gadget id="calculator">54 + 2</gadget>
<output>56</output>

<gadget id="calculator">56 / 13</gadget>
<output>56/13 = around 4.307692</output>

<result>56/13 = around 4.307692</result>