(5/6)*(2/3)+(1/6)*(2/3).
(5/6)*(2/3)+(1/6)*(2/3)．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

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

<gadget id="calculator">(5/6) * (2/3)</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) * (2/3)</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(5/9) + (1/9)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>