There are two ropes, one is (1/4) meter long and the other is (5/7) meter long, how many meters are the total length of the two ropes? What is the column
两根绳子，一根长(1/4)米，另一根长(5/7)米，两根绳子一共长多少米？列式为多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(1/4) + (5/7)</gadget>
<output>27/28 = around 0.964286</output>

<result>27/28 = around 0.964286</result>