53*(1/23-1/76)-76*(1/23-1/53)-23*(1/53+1/76)请给过程
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![53*(1/23-1/76)-76*(1/23-1/53)-23*(1/53+1/76)请给过程](/uploads/image/z/334898-26-8.jpg?t=53%2A%281%2F23-1%2F76%29-76%2A%281%2F23-1%2F53%29-23%2A%281%2F53%2B1%2F76%29%E8%AF%B7%E7%BB%99%E8%BF%87%E7%A8%8B)
53*(1/23-1/76)-76*(1/23-1/53)-23*(1/53+1/76)请给过程
53*(1/23-1/76)-76*(1/23-1/53)-23*(1/53+1/76)请给过程
53*(1/23-1/76)-76*(1/23-1/53)-23*(1/53+1/76)请给过程
53*(1/23-1/76)-76*(1/23-1/53)-23*(1/53+1/76)
=53*1/23-53*1/76-76*1/23+76*1/53-23*1/53+23*1/76
=(53-76)*1/23+(53+23)*1/76+(76-23)*1/53
=-23/23+76/76+53/53=-1+1+1=1