(4/5+1/3)+(1-1/5+2/3)的简便算法暂时没钱,
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![(4/5+1/3)+(1-1/5+2/3)的简便算法暂时没钱,](/uploads/image/z/746632-64-2.jpg?t=%284%2F5%2B1%2F3%29%2B%281-1%2F5%2B2%2F3%29%E7%9A%84%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E6%9A%82%E6%97%B6%E6%B2%A1%E9%92%B1%2C)
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(4/5+1/3)+(1-1/5+2/3)的简便算法暂时没钱,
(4/5+1/3)+(1-1/5+2/3)的简便算法
暂时没钱,
(4/5+1/3)+(1-1/5+2/3)的简便算法暂时没钱,
(4/5+1/3)+(1-1/5+2/3)
=4/5-1/5+1/3+2/3
=3/5+1
=1又3/5