(3/8)/(75%-(8/15)/(8/3)*(62.5%-(5/8))).
(3/8)/(75%-(8/15)/(8/3)*(62.5%-(5/8)))．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">8 / 3</gadget>
<output>8/3 = around 2.666667</output>

<gadget id="calculator">(8/15) / (8/3)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">62.5 / 100</gadget>
<output>0.625</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">0.625 - (5/8)</gadget>
<output>0</output>

<gadget id="calculator">(1/5) * 0</gadget>
<output>0</output>

<gadget id="calculator">(3/4) - 0</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/8) / (3/4)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>