(4/5)*7.4-(4/5)+3.6*0.8．
(4/5)*7.4-(4/5)+3.6*0.8．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * 7.4</gadget>
<output>5.92</output>

<gadget id="calculator">5.92 - (4/5)</gadget>
<output>5.12</output>

<gadget id="calculator">3.6 * 0.8</gadget>
<output>2.88</output>

<gadget id="calculator">5.12 + 2.88</gadget>
<output>8</output>

<result>8</result>