(4/5)*3.8+5.2*80%+0.8．
(4/5)*3.8+5.2*80%+0.8．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * 3.8</gadget>
<output>3.04</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">5.2 * (4/5)</gadget>
<output>4.16</output>

<gadget id="calculator">3.04 + 4.16 + 0.8</gadget>
<output>8</output>

<result>8</result>