|-0.75|+(+3又1/4)-(-0.125)-|0.25|+(+5/8)
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|-0.75|+(+3又1/4)-(-0.125)-|0.25|+(+5/8)
=0.75+13/4+0.125-0.25+5/8
=0.625+26/8+5/8
=0.625+31/8
=0.625+3.875
=4.5
=0.75+13/4+0.125-0.25+5/8
=0.625+26/8+5/8
=0.625+31/8
=0.625+3.875
=4.5
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