3-5÷12-1⼀12简便方法?

2024-11-20 18:24:33
推荐回答(2个)
回答1:

3-5/12-1/12

=31/12-1/12

=5/2

回答2:

3-5÷12-1/12
=3-5/12-1/12
=3-(5/12+1/12)
=3-1/2
=2又1/2