括号6.1-4.6括号除以0.8-1等于简便方法计算

括号6.1-4.6括号除以0.8-1等于简便方法计算
2025-05-19 16:45:32
推荐回答(1个)
回答(1):

(6.1-4.6)÷0.8-1
=1.5÷0.8-1
=15/8-1
=7/8