2.4*(5-(3/8))+2(2/5)*(3/8).
2.4*(5-(3/8))+2(2/5)*(3/8)．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">5 - (3/8)</gadget>
<output>37/8 = around 4.625</output>

<gadget id="calculator">2.4 * (37/8)</gadget>
<output>11.1</output>

<gadget id="calculator">2.4 * (3/8)</gadget>
<output>0.9</output>

<gadget id="calculator">11.1 + 0.9</gadget>
<output>12</output>

<result>12</result>