Xiaoxuan's uncle bought a big watermelon. Xiaoxuan wanted to know the weight of the watermelon, but the uncle said mysteriously to her: "(7/8) kilogram plus (7/8) the weight of this watermelon is the weight of the watermelon". What is the weight of this watermelon in kilograms?
小萱的叔叔买了一个大西瓜，小萱想知道西瓜有多重，叔叔神秘对她说："(7/8)千克再加上这个西瓜重量的(7/8)，就是西瓜的重量"．这个西瓜的重量为多少千克．
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">1 - (7/8)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(7/8) / (1/8)</gadget>
<output>7</output>

<result>7</result>