Calculation: ((7/8)-(5/6))*((7/8)+(5/6)).
计算：((7/8)-(5/6))*((7/8)+(5/6))．
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(7/8) - (5/6)</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">(7/8) + (5/6)</gadget>
<output>41/24 = around 1.708333</output>

<gadget id="calculator">(1/24) * (41/24)</gadget>
<output>41/576 = around 0.071181</output>

<result>41/576 = around 0.071181</result>