After cutting (5/12) meters from a rope, there is still (1/4) meters left, what is the original length of the rope?
一根绳子剪掉(5/12)米后还剩下(1/4)米，还根绳子原来长多少米
<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

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

<gadget id="calculator">(5/12) + (1/4)</gadget>
<output>2/3 = around 0.666667</output>

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