A rope was originally 3 meters long. Xiaodong cut off (1/4) of the rope, and Xiaoming connected it to (1/4) meter. What is the length of this rope in meters?
一根绳子原来长3米，小东截去这根绳子的(1/4)，小明又把它接上(1/4)米．现在这根绳子的长度是多少米．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(9/4) + (1/4)</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>