Calculation: ((4/5)-0/((1/3)+(2/5)))*(5/8)=
计算：((4/5)-0/((1/3)+(2/5)))*(5/8)=
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/3) + (2/5)</gadget>
<output>11/15 = around 0.733333</output>

<gadget id="calculator">0 / (11/15)</gadget>
<output>0</output>

<gadget id="calculator">(4/5) - 0</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) * (5/8)</gadget>
<output>1/2 = around 0.5</output>

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