(1⼀2+1⼀3-1⼀4)除以1⼀12简便计算

2024-12-02 13:59:46
推荐回答(3个)
回答1:

(1/3+1/4)÷(念者1/2-1/3)
=(4+3)÷(6-4)  【除数与被除数同时乘以12】碰高拍
=7/笑羡2
=3.5

回答2:

回答3:

=12/2+12/3-12/4
=6+4-3
=7