(-1.25)+3.85+(-3又1/4)+(-1/2)+1 .75

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(-1.25)+3.85+(-3又1/4)+(-1/2)+1 .75

(-1.25)+3.85+(-3又1/4)+(-1/2)+1 .75
= -1.25-3.25-0.5+3.85+1.75
= -5+5.35
=0.35