rectangle is 6 cm long and 4 cm wide. If the length and width of the rectangle are increased by (1/2) respectively, the area of the rectangle is now the original ((())/(())).
一个长方形，长6厘米，宽4厘米，如果这个长方形的长和宽分别增加(1/2)后，现在长方形的面积是原来的((())/(()))．
<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">4 * (3/2) * 4</gadget>
<output>24</output>

<gadget id="calculator">(3/2) / 24</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">6 * (3/2) * 4 * (1/16)</gadget>
<output>9/4 = around 2.25</output>

<result>9/4 = around 2.25</result>