(5/14)*(((3/4)-(2/5))/(5/4)).
(5/14)*(((3/4)-(2/5))/(5/4))．
<gadget id="calculator">5 / 14</gadget>
<output>5/14 = around 0.357143</output>

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

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

<gadget id="calculator">(3/4) - (2/5)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(7/20) / (5/4)</gadget>
<output>7/25 = around 0.28</output>

<gadget id="calculator">(5/14) * (7/25)</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>