A triangle, the lengths of the three sides are (1/2) decimeter, (7/10) decimeter, (5/6) decimeter, what is the perimeter of this triangle?
一个三角形，三条边的长度分别是(1/2)分米，(7/10)分米，(5/6)分米，这个三角形的周长是多少分米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(1/2) + (7/10) + (5/6)</gadget>
<output>61/30 = around 2.033333</output>

<result>61/30 = around 2.033333</result>