【几道数学计算题,计算(要写过程)(-1/3)+(+1/2)+(-2/3)+(+4/5)+(-1/2)(+13又1/23)+(-55又1/33)+(+7又21/46)+(-14又5/60)(+0.75)+(-1又7/120)(+5/8)+(-0.675)2+(-4)+6(-8)+...+18+(-20)1+2+3+...2023+2023+2023(-2/3)-(+1/6)-(-1/4)-(+1/ |
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