Calculation: 6.8-(1/3)+3.2-(2/3).
计算：6.8-(1/3)+3.2-(2/3)．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6.8 - (1/3)</gadget>
<output>6.466667</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">3.2 - (2/3)</gadget>
<output>2.533333</output>

<gadget id="calculator">6.466667 + 2.533333</gadget>
<output>9</output>

<result>9</result>