(5/9)*(2/3)-(7/18)*(3/4).
(5/9)*(2/3)-(7/18)*(3/4)．
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(5/9) * (2/3)</gadget>
<output>10/27 = around 0.37037</output>

<gadget id="calculator">7 / 18</gadget>
<output>7/18 = around 0.388889</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(7/18) * (3/4)</gadget>
<output>7/24 = around 0.291667</output>

<gadget id="calculator">(10/27) - (7/24)</gadget>
<output>17/216 = around 0.078704</output>

<result>17/216 = around 0.078704</result>