(2.4+(2/3))*15=how much.
(2.4+(2/3))*15=多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">2.4 + (2/3)</gadget>
<output>3.066667</output>

<gadget id="calculator">3.066667 * 15</gadget>
<output>46.000005</output>

<result>46.000005</result>