Simple calculation: (3/4)*2+(2/5)/2.
简便计算：(3/4)*2+(2/5)/2．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) * 2</gadget>
<output>3/2 = around 1.5</output>

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

<gadget id="calculator">(2/5) / 2</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(3/2) + (1/5)</gadget>
<output>17/10 = around 1.7</output>

<result>17/10 = around 1.7</result>