Question

so sánh

\(\dfrac{-22}{45}\&\dfrac{-51}{101}\)

Answer 1

Xét tích :

(-22) . 101 = -2222

(-51) . 45 = -2295

Vì -2222 > -2295 => (-22) . 101 > (-51) . 45

=> \(\dfrac{-22}{45}>\dfrac{-51}{101}\)

Vậy \(\dfrac{-22}{45}>\dfrac{-51}{101}\)

Answer 2

Cách khác:

Ta có: \(-\dfrac{22}{45}>-\dfrac{1}{2}\\ -\dfrac{51}{101}< -\dfrac{1}{2}\\ =>-\dfrac{22}{45}>-\dfrac{51}{101}\left(t.c-bắc-cầu\right)\)

Answer 3

\(\dfrac{-22}{45}\)>\(\dfrac{-51}{101}\)