a) (1/3 + 12/67 + 13/41 ) – ( 79/67 – 28/41)

0 bình luận về “a) (1/3 + 12/67 + 13/41 ) – ( 79/67 – 28/41)”

1. 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

2. `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