\(\dfrac{2}{6}=\dfrac{8}{24}\)

\(\dfrac{2}{8}=\dfrac{6}{24}\)

\(\dfrac{6}{2}=\dfrac{24}{8}\)

\(\dfrac{8}{2}=\dfrac{24}{6}\)

Phân số nào có mẫu số lớn hơn thì nhỏ hơn và ngược lại.

Trees should be planted around the school yard

C

C

D

31. least

32. peace

33. sucessful

34. photographer

35. uninteresting

36. harmless

37. to celebrate

38. decision

39. energetic

40. disappear

\(x=-9\)

\(y=-21\)

A

Có: \(\dfrac{2019}{2021}=1-\dfrac{2}{2021}\)

       \(\dfrac{2020}{2022}=1-\dfrac{2}{2022}\)

Mà \(\dfrac{2}{2021}>\dfrac{2}{2022}\Rightarrow1-\dfrac{2}{2021}< 1-\dfrac{2}{2022}\Rightarrow\dfrac{2019}{2021}< \dfrac{2020}{2022}\)