(5/3): x=(3/4): 2, then x=how much.
(5/3)：x=(3/4)：2，那么x=多少．
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(5/3) * 2</gadget>
<output>10/3 = around 3.333333</output>

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

<gadget id="calculator">(10/3) / (3/4)</gadget>
<output>40/9 = around 4.444444</output>

<result>40/9 = around 4.444444</result>