Use a simple method: ((3/8)+(1/3))*8*3.
用简便方法：((3/8)+(1/3))*8*3．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(3/8) + (1/3)</gadget>
<output>17/24 = around 0.708333</output>

<gadget id="calculator">(17/24) * 8 * 3</gadget>
<output>17</output>

<result>17</result>