解:(1)设0.=x,由0.=0.5555…,可知,10x﹣x=5.55…﹣0.555…=5,即10x﹣x=5,解方程得,于是得:0.=;(2)设0.=x,由0.=0.73737373…,可知,100x﹣x=73.73…﹣0.7373=73,即100x﹣x=73,解方程得,于是得0.=.
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