(7/3)/((4/5)+(1/4))+(17/9).
(7/3)/((4/5)+(1/4))+(17/9)．
<gadget id="calculator">7 / 3</gadget>
<output>7/3 = around 2.333333</output>

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

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(4/5) + (1/4)</gadget>
<output>21/20 = around 1.05</output>

<gadget id="calculator">(7/3) / (21/20)</gadget>
<output>20/9 = around 2.222222</output>

<gadget id="calculator">17 / 9</gadget>
<output>17/9 = around 1.888889</output>

<gadget id="calculator">(20/9) + (17/9)</gadget>
<output>37/9 = around 4.111111</output>

<result>37/9 = around 4.111111</result>