Calculation: ((4/5)-(1/3))/(4/9)+(5/6).
计算：((4/5)-(1/3))/(4/9)+(5/6)．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) - (1/3)</gadget>
<output>7/15 = around 0.466667</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">(7/15) / (4/9)</gadget>
<output>21/20 = around 1.05</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(21/20) + (5/6)</gadget>
<output>113/60 = around 1.883333</output>

<result>113/60 = around 1.883333</result>