A square has one side increased by (1/3) and the other side increased by (1/4) to become a rectangle. By what fraction does the area of the rectangle increase compared to the area of the square?
一个正方形，一条边增加了(1/3)，另一条边增加了(1/4)，变成了一个长方形，这个长方形的面积比正方形的面积增加了几分之几？
<gadget id="calculator">1 * 1</gadget>
<output>1</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 * (1/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 * (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">(4/3) * (5/4)</gadget>
<output>5/3 = around 1.666667</output>

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

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

<gadget id="calculator">(5/3) - 1</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>