计算(2*3*4*5)*(1/2+1/3+1/4+1/5)

问题描述:

计算(2*3*4*5)*(1/2+1/3+1/4+1/5)
*为乘号

(2*3*4*5)*(1/2+1/3+1/4+1/5)=(2×3×4×5×1/2)+(2×3×4×5×1/3)+(2×3×4×5×1/4)+(2×3×4×5×1/5) =60+40+30+24 =154