In (2/(x))=(3/4), when x is equal to the number, the ratio can be formed.
在(2/(x))=(3/4)中，当x等于多少时，才能组成比例．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / (3/4)</gadget>
<output>8/3 = around 2.666667</output>

<result>8/3 = around 2.666667</result>