Calculation: ((1/3)+((4/5)-(2/3))*(5/3))/(8/9).
计算：((1/3)+((4/5)-(2/3))*(5/3))/(8/9)．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) - (2/3)</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(2/15) * (5/3)</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(1/3) + (2/9)</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">(5/9) / (8/9)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>