(1/((3/4)+(1/3)))*(3/4).
(1/((3/4)+(1/3)))*(3/4)．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(3/4) + (1/3)</gadget>
<output>13/12 = around 1.083333</output>

<gadget id="calculator">1 / (13/12)</gadget>
<output>12/13 = around 0.923077</output>

<gadget id="calculator">(12/13) * (3/4)</gadget>
<output>9/13 = around 0.692308</output>

<result>9/13 = around 0.692308</result>