(2/3)*5/(2/3)*5=how much
(2/3)*5/(2/3)*5=多少
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">5 / (2/3)</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">(2/3) * (15/2) * 5</gadget>
<output>25</output>

<result>25</result>