-5*2/3-3/7*0.34+1/3*(-5)+2/7*(-0.68) 简便计算

问题描述:

-5*2/3-3/7*0.34+1/3*(-5)+2/7*(-0.68) 简便计算

-5*2/3-3/7*0.34+1/3*(-5)+2/7*(-0.68)
=-5*(2/3+1/3)-(3/7+4/7)*0.34
=-5-0.34
=-5.34