rút gọn biểu thức (1+1/5)/(1-1/5) : (1-3/4)/(1+3/4) 31/07/2021 Bởi Alice rút gọn biểu thức (1+1/5)/(1-1/5) : (1-3/4)/(1+3/4)
@Queen `(1+1/5)/(1-1/5) : (1-3/4)/(1+3/4)` `= (6/5) / (4/5): (1/4) / (7/4)` `= 3/2 : 1/7` `= 21/2` Bình luận
@Queen
`(1+1/5)/(1-1/5) : (1-3/4)/(1+3/4)`
`= (6/5) / (4/5): (1/4) / (7/4)`
`= 3/2 : 1/7`
`= 21/2`