2⼀13*1⼀7+11⼀13⼀7简便计算(1⼀3+1⼀4-1⼀2)⼀1⼀12简便计算

2025-04-29 12:55:59
推荐回答(1个)
回答1:

2/13*1/7+11/13/7简便计算
=2/13*7+11/13*7
=(2+11)/13*7
=13/13*7
=1/7

(1/3+1/4-1/2)/1/12
=(1/3+1/4-1/2)×12
=4+3-6
=1