四分之三乘以0.5+2.4÷1又五分之一用脱式计算怎么算?

2025-04-13 04:33:04
推荐回答(1个)
回答1:

一又五分之一等于6/5
3/4×0.5+2.4÷6/5
=3/4×1/2+2.4×5/6
=3/8+2
=0.375+2
=2.375