(12/5+19/1)×12+19/7 这题怎么简算?
问题描述:
(12/5+19/1)×12+19/7 这题怎么简算?
答
(12/5+19/1)×12+19/7 =12/5×12+19/1×12+19/7 =5+19/12+19/7 =5+1 =6
(12/5+19/1)×12+19/7 这题怎么简算?
(12/5+19/1)×12+19/7 =12/5×12+19/1×12+19/7 =5+19/12+19/7 =5+1 =6