(+3分之2)除以(-0.4-(-3分之1)除以(-0.4)+1又3分之2除以0.4

问题描述:

(+3分之2)除以(-0.4-(-3分之1)除以(-0.4)+1又3分之2除以0.4

(2/3)/(-2/5+1/3)/(-2/5)+(5/3)/(2/5)=175/6