A rope is used up (3/8), and the remaining length is 12 decimeters longer than the used one, so how many decimeters was this rope originally?
一根绳子用去(3/8)，剩下的长度比用去的长12分米，那么这根绳子原来多少分米？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">12 / (1/8)</gadget>
<output>96</output>

<result>96</result>