9⼀4-(1⼀4+1⼀5)=

9/4-(1/4+1/5)=
2024-12-01 14:39:49
推荐回答(5个)
回答(1):

简便算9/4-1/4-1/5=1-1/5=4/5

回答(2):

9/4-(1/4+1/5)
=9/4-(5/20+4/20)
=45/20-9/20
=36/20
=9/5

回答(3):

=9/4-1/4-1/5
=8/4-1/5
=2-1/5
=9/5=1.8

回答(4):

=9/4-(5/20+4/20)=45/20-9/20=36/20=9/5

回答(5):

9/4-1/4-1/5=1+4/5