If the edge length of a cube increases by 1/2 of the original length, how much does its surface area increase compared to the original surface area?
一个正方体的棱长增加原长的(1/2)，它的表面积比原表面积增加多少
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) * (3/2) * 6</gadget>
<output>27/2 = around 13.5</output>

<gadget id="calculator">1 * 1 * 6</gadget>
<output>6</output>

<gadget id="calculator">(27/2) / 6</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">(9/4) - 1</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>