Calculation: (3/5)/(1/3)-(1/3)/(3/5).
计算：(3/5)/(1/3)-(1/3)/(3/5)．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(3/5) / (1/3)</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">(1/3) / (3/5)</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">(9/5) - (5/9)</gadget>
<output>56/45 = around 1.244444</output>

<result>56/45 = around 1.244444</result>