A rectangular tabletop is (5/4) meters long and (3/5) meters wide, and a square tabletop is (4/5) meters long. How many square meters is the rectangular tabletop larger than the square tabletop?
一个长方形桌面，长(5/4)米，宽(3/5)米，一个正方形桌面，边长(4/5)米，长方形桌面比正方形桌面大多少平方米？
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(5/4) * (3/5)</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(4/5) * (4/5)</gadget>
<output>16/25 = around 0.64</output>

<gadget id="calculator">(3/4) - (16/25)</gadget>
<output>11/100 = around 0.11</output>

<result>11/100 = around 0.11</result>