12.4减去五分之二的差去除三和他的倒数和,商是多少?

2025-04-06 09:02:04
推荐回答(2个)
回答(1):

(12.4-2/5)/(3+1/3)=12/(10/3)=12*3/10=3.6

回答(2):

(12.4一2/5)÷(3十1/3)
=(12.4一0.4)÷(9/3十1/3)
=12÷10/3
=12×3/10
=36/10
=18/5=3.6。