0.77×0.33÷0.44÷0.99 怎么简便运算
问题描述:
0.77×0.33÷0.44÷0.99 怎么简便运算
答
0.77 × 0.33 ÷ 0.44 ÷ 0.99
=(0.77 ÷ 0.44)×(0.33 ÷ 0.99)
= 7/4 × 1/3
= 7/12