Tính nhanh: [(1/2-0.75)*(0.2-2/5)]/5/9-11/12 30/10/2021 Bởi Abigail Tính nhanh: [(1/2-0.75)*(0.2-2/5)]/5/9-11/12
`[(1/2-0,75)*(0,2-2/5)]:5/9-11/12` `=[-1/4*(-1)/5]*9/5-11/12` `=1/20*9/5-11/12` `=9/100-11/12` `=151 /150` Bình luận
`[(1/2-0,75)*(0,2-2/5)]:5/9-11/12`
`=[-1/4*(-1)/5]*9/5-11/12`
`=1/20*9/5-11/12`
`=9/100-11/12`
`=151 /150`