(8/9)*((15/16)*((7/16)-(1/4))/(1/2)).
(8/9)*((15/16)*((7/16)-(1/4))/(1/2))．
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">15 / 16</gadget>
<output>15/16 = around 0.9375</output>

<gadget id="calculator">7 / 16</gadget>
<output>7/16 = around 0.4375</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(7/16) - (1/4)</gadget>
<output>3/16 = around 0.1875</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(3/16) / (1/2)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(15/16) * (3/8)</gadget>
<output>45/128 = around 0.351562</output>

<gadget id="calculator">(8/9) * (45/128)</gadget>
<output>5/16 = around 0.3125</output>

<result>5/16 = around 0.3125</result>