Ta có: \(\dfrac{-371}{-459}=\dfrac{371}{459}\) là một số dương 

=> \(\dfrac{-371}{-459}>\dfrac{-371}{159}\)

`@` `\text {Ans}`

`\downarrow`

`315/380 = 1 - 65/380`

`316/380 = 1 - 65/381`

Mà `65/380 > 65/381`

`-> 1 - 65/380 < 1 - 65/381`

`-> 315/380 < 316/381`

`=> -315/380 > -316/381`

315/380=1-65/380

316/381=1-65/381

mà 65/380>65/381

nên 315/380<316/381

=>-315/380>-316/381

-315/380 = -120015/144780

-316/381 = -120080/144780

Do -120015 > -120080

-120015/144780 > -120080/144780

⇒ -315/380 > -316/381

Ta thấy 8/6 là phân số lớn hơn 1 vì chúng có tử số lớn hơn mẫu số, còn 42/43 là phân số bé hơn 1 vì chúng có tử số nhỏ hơn mẫu số nên 8/6 > 42/43.Ta thấy 405/2001 < 459/1997 vì 405/2001 là phân số có tử số nhỏ hơn phân số 459/1997 và còn phải chia cho mẫu số lớn hơn mẫu số của phân số 459/1997.

Số lớn nhất trong các số 459 495; 459 549; 549 954 và 549 945 là 549 954.

Chọn C.

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462,459

Số chia hết cho 3 là : 462; 459

459