Toán a) (1/3 + 12/67 + 13/41 ) – ( 79/67 – 28/41) 11/09/2021 By Mary a) (1/3 + 12/67 + 13/41 ) – ( 79/67 – 28/41)
Đáp án: `1/3` Giải thích các bước giải: ` ( 1/3 + 12/67 + 13/41 ) – ( 79/67 – 28/41 ) ` ` = (103/201 + 13/41) – 1363/2747` ` = 6836/8241 – 1363/2747 ` ` = 1/3 ` Trả lời
`a ) (1/3 + 12/67 + 13/41 ) – ( 79/67 – 28/41) ` `= 1/3 + 12/67 + 13/41 – 79/67 + 28/41` `= ( 12/67 – 79/67 ) + ( 13/41 + 28/41 ) + 1/3` `= -67/67 + 41/41 + 1/3` `= -1 + 1 + 1/3` `= 0 + 1/3` `= 1/3` Trả lời
Đáp án:
`1/3`
Giải thích các bước giải:
` ( 1/3 + 12/67 + 13/41 ) – ( 79/67 – 28/41 ) `
` = (103/201 + 13/41) – 1363/2747`
` = 6836/8241 – 1363/2747 `
` = 1/3 `
`a ) (1/3 + 12/67 + 13/41 ) – ( 79/67 – 28/41) `
`= 1/3 + 12/67 + 13/41 – 79/67 + 28/41`
`= ( 12/67 – 79/67 ) + ( 13/41 + 28/41 ) + 1/3`
`= -67/67 + 41/41 + 1/3`
`= -1 + 1 + 1/3`
`= 0 + 1/3`
`= 1/3`