(2/3×5/8)×4.8=2/3×5/8×(4+4/5)=2×5×4/(3×8)+2/3×5/8×4/5=5/3+1/3×(2×4)/8×5/5=5/3+1/3=2
简便方法如下：＝2/3×5×0.6【注：8和4.8约分】＝2/3×3＝2
