3*((1/3)-(1/8))*8.
3*((1/3)-(1/8))*8．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/3) - (1/8)</gadget>
<output>5/24 = around 0.208333</output>

<gadget id="calculator">3 * (5/24) * 8</gadget>
<output>5</output>

<result>5</result>