((2/3)+(3/4))/(7/12)+(4/5).
((2/3)+(3/4))/(7/12)+(4/5)．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(2/3) + (3/4)</gadget>
<output>17/12 = around 1.416667</output>

<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">(17/12) / (7/12)</gadget>
<output>17/7 = around 2.428571</output>

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

<gadget id="calculator">(17/7) + (4/5)</gadget>
<output>113/35 = around 3.228571</output>

<result>113/35 = around 3.228571</result>