38又4分之3-15.38+61.25-4.62

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38又4分之3-15.38+61.25-4.6238又4分之3-15.38+61.25-4.6238又4分之3-15.38+61.25-4.6238又4分之3-15.38+61.25-4.62=38.

38又4分之3-15.38+61.25-4.62
38又4分之3-15.38+61.25-4.62

38又4分之3-15.38+61.25-4.62
38又4分之3-15.38+61.25-4.62
=38.75-15.38+61.25-4.62
=38.75+61.25- (15.38+4.62)
=100-20
=80