The lengths of the three sides of a triangle are (3/4) decimeters, (1/3) decimeters, (1/2) decimeters, how many decimeters is the perimeter of this triangle?
一个三角形三条边的长度分别是(3/4)分米，(1/3)分米，(1/2)分米，这个三角形的周长是多少分米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(3/4) + (1/3) + (1/2)</gadget>
<output>19/12 = around 1.583333</output>

<result>19/12 = around 1.583333</result>