76*(1/23-1/53)+23*(1/53+1/76)+53*(1/23-1/76)的简便算法请说明理由,
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![76*(1/23-1/53)+23*(1/53+1/76)+53*(1/23-1/76)的简便算法请说明理由,](/uploads/image/z/1009408-40-8.jpg?t=76%2A%EF%BC%881%2F23-1%2F53%EF%BC%89%2B23%2A%EF%BC%881%2F53%2B1%2F76%EF%BC%89%2B53%2A%EF%BC%881%2F23-1%2F76%EF%BC%89%E7%9A%84%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E8%AF%B7%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1%2C)
76*(1/23-1/53)+23*(1/53+1/76)+53*(1/23-1/76)的简便算法请说明理由,
76*(1/23-1/53)+23*(1/53+1/76)+53*(1/23-1/76)的简便算法
请说明理由,
76*(1/23-1/53)+23*(1/53+1/76)+53*(1/23-1/76)的简便算法请说明理由,
76*(1/23-1/53)+23*(1/53+1/76)-53*(1/23-1/76)
=76/23-76/53+23/53+23/76-53/23+53/76
=(76/23-53/23)-(76/53-23/53)+(23/76+53/76)
=1-1+1
=1