(1/3)/((2/3)-(2/5))*(3/5).
(1/3)/((2/3)-(2/5))*(3/5)．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/3) - (2/5)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(1/3) / (4/15)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(5/4) * (3/5)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>