What is the original area of the square after the side length of the square is increased by (1/4)
正方形的边长增加(1/4)后，它的面积是原来的多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(5/4) ** 2</gadget>
<output>25/16 = around 1.5625</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">(25/16) - 1</gadget>
<output>9/16 = around 0.5625</output>

<gadget id="calculator">(9/16) / 1</gadget>
<output>9/16 = around 0.5625</output>

<result>9/16 = around 0.5625</result>