Đáp án:

 

Giải thích các bước giải:

mk chuyên lm toán thui

`a)1326/1734`

`= {1326 : 102}/{1734 : 102}`

`= 13/17`

`85/153` 

`=(85 : 17)/(153 : 17)`

`=5/9`

`279/341`

`={279 : 31}/{341 : 31}`

`=9/11`

`119/391`

`= {119 : 17}/{391 : 17}`

`= 7/23`

`369/574`

 `= {369 : 41}/{574 : 41}`

`= 9/14`

`b)59595/9454545`

`= {595959 : 10101}/{454545 : 10101}`

`= 59/45`

`14141414/15151515 `

`= {14141414 : 1010101}/{15151515 : 1010101`

`= 14/15`

`987987987/416416416`

` = {987987987 : 100100}/{1416416416 : 1001001}`

`= 987/416`

`630990/224261`

` = {630990 : 1}/{224261 : 1} = 630990/224261`

`374/506`

` = {374 : 22}/{506 : 22}`

`= 17/23`

Gửi bạn phần toán

$@khoinguyendang$

Bài `1`

`a ) 1326/1724 = (1326 : 2)/(1724 : 2) = 663/862`

`85/153 = (85 : 17)/(153 : 17) = 5/9`

`279/341 = (279 : 31)/(341 : 31) = 9/11`

`119/391 = (119 : 17)/(391 : 17) = 7/23`

`369/574 = (369 : 41)/(574 : 41) = 9/14`

`b ) 595959/454545 = (595959 : 10101)/(454545 : 10101) = 59/45`

`14141414/15151515 = (14141414 : 1010101)/(15151515 : 1010101) = 14/15`

`987987987/461461461 = (987987987 : 10101)/(461461461 : 101) = 987/461`

`630/224 = (630 : 14)/(224 : 14) = 45/16`

`990/2610 = (990 : 90)/(2610 : 90) = 11/29`

`374/506 = (374 : 22)/(506 : 22) = 17/23`

`#dtkc`