Question

So Sanh : \(\dfrac{-22}{45}\)và\(\dfrac{-51}{103}\)

Answer 1

\(\dfrac{-22}{45}=-\dfrac{2266}{45.103}>-\dfrac{2295}{45.103}=-\dfrac{51}{103}\)

Answer 2

Ta có: \(\dfrac{-22}{45}=\dfrac{-22\cdot103}{45\cdot103}=\dfrac{-2266}{4635}\)

\(\dfrac{-51}{103}=\dfrac{-51\cdot45}{103\cdot45}=\dfrac{-2295}{4635}\)

mà -2266>-2295

nên \(\dfrac{-22}{45}>\dfrac{-51}{103}\)

Answer 3

Đồng tiên bạn quy đồng, rồi so sánh nhé