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八分之一x2.75+0.125x4又4分之1+12.5%=
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八分之一x2.75+0.125x4又4分之1+12.5%
=0.125x2.75+0.125x4.25+0.125
=0.125x(2.75+4.25+1)
=0.125x8
=1
=0.125x2.75+0.125x4.25+0.125
=0.125x(2.75+4.25+1)
=0.125x8
=1
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