36/144,84/144, 132/144, 180/144, 每個分子比前一個分數的分子按這個規律加大:+48, +84, +48.......那麽,下一個分子應該加84, 這個分數就該是229/144 也就是 19/12
36/144,84/144, 132/144, 180/144, 每個分子比前一個分數的分子按這個規律加大:+48, +84, +48.......那麽,下一個分子應該加84, 這個分數就該是229/144 也就是 19/12
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