178x78⼀179有没有简便运算方法?

2024-12-13 01:56:51
推荐回答(2个)
回答1:

=(179-1)×78/179
=179×78/179-1×78/179
=78-78/179
=77×101/179

回答2:

=178/179*78
=(1-1/179)*78
=78-1/179