可以使用分数通分和运用分配律的方法简化这个表达式:
5/11 - (8/9 - 6/11) = 5/11 - [(811)/(911) - (69)/(119)]
= 5/11 - (88/99 - 54/99)
= 5/11 - 34/99
= (495/99 - 34/99)
= 461/99
因此,答案为 461/99。
5/11-(8/9-6/11)括号简便方法?
5/11-(8/9-6/11)
=5/11+6/11-8/9
=1-8/9
=1/9
5/11-8/9+6/11
=5/11+6/11-8/9
=1-8/9
=1/9
5/11-(8/9-6/11)
=5/11+6/11-8/9
=1-8/9
=1/9