7/(4/3)+5*(3/4).
7/(4/3)+5*(3/4)．
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">7 / (4/3)</gadget>
<output>21/4 = around 5.25</output>

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

<gadget id="calculator">5 * (3/4)</gadget>
<output>15/4 = around 3.75</output>

<gadget id="calculator">(21/4) + (15/4)</gadget>
<output>9</output>

<result>9</result>