Subtract the product of (3/4) and (4/5) from (3/4), divide the difference by 9, what is the quotient?
(3/4)减去(3/4)与(4/5)的积，所得的差除9，商是几？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(3/4) * (4/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/4) - (3/5)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">9 / (3/20)</gadget>
<output>60</output>

<result>60</result>