Calculation: (3/5)+0.5*(4/5)/(2/3).
计算：(3/5)+0.5*(4/5)/(2/3)．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(4/5) / (2/3)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">0.5 * (6/5)</gadget>
<output>0.6</output>

<gadget id="calculator">(3/5) + 0.6</gadget>
<output>1.2</output>

<result>1.2</result>