(1/3)+(2/3)/(5/12).
(1/3)+(2/3)/(5/12)．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(2/3) / (5/12)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">(1/3) + (8/5)</gadget>
<output>29/15 = around 1.933333</output>

<result>29/15 = around 1.933333</result>