(3/20×0.4×21/10)除以(0.6×1/2×0.63) 一定要简便运算!
问题描述:
(3/20×0.4×21/10)除以(0.6×1/2×0.63) 一定要简便运算!
答
厉害啊
答
(3/20×0.4×21/10)除以(0.6×1/2×0.63)
=(0.06×2.1)除以(0.3×0.63)
=(6×21)÷(3×63)
=6÷(3×3)
=2/3