图
3/4x2/5加3/5÷4/3怎样简便怎样算=3/4x2/5+3/5x3/4=3/4x(2/5+3/5)=3/4x1=3/4
3/4x2/5＋3/5÷4/3＝3/4×(2/5＋3/5)＝3/4×1＝3/4
