3.6 Add the sum of 3 (4/5) and divide by (9/10), what is the quotient?
3.6加上3个(4/5)的和，被(9/10)除，商是多少？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * 3</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">3.6 + (12/5)</gadget>
<output>6</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">6 / (9/10)</gadget>
<output>20/3 = around 6.666667</output>

<result>20/3 = around 6.666667</result>