计算:3.2-(3/4)-5/24+(-2.1)
问题描述：
计算:3.2-(3/4)-5/24+(-2.1)
答
3.2-(3/4)-5/24+(-2.1)=3.2-2.1-18/24-5/24=0.9-23/24=0.9-1-1/24=1/10-1/24=(24-10)/240=7/120
计算:3.2-(3/4)-5/24+(-2.1)
3.2-(3/4)-5/24+(-2.1)=3.2-2.1-18/24-5/24=0.9-23/24=0.9-1-1/24=1/10-1/24=(24-10)/240=7/120