Question

[Ngô Thái An]

So sánh phân số
 63/64 và 32/33
2020/2019 và 2022/2021

Answer 1

[Sakuvy]

$1-\frac{63}{64}=\frac{1}{64}$

$1-\frac{32}{33}=\frac{1}{33}$

Vì $\frac{1}{64}<\frac{1}{33}\Rightarrow \frac{63}{64}>\frac{32}{33}$

Vậy $\frac{63}{64}>\frac{32}{33}$

Answer 2

[Sakuvy]

$\frac{2020}{2019}-1=\frac{1}{2019}$

$\frac{2022}{2021}-1=\frac{1}{2021}$

Mà $\frac{1}{2019}>\frac{1}{2021}$

$\Rightarrow \frac{2020}{2019}>\frac{2022}{2021}$

Vậy $\frac{2020}{2019}>\frac{2022}{2021}$

Answer 3

[Nguyễn Thị Thương Hoài]

\(\dfrac{63}{64}\) = 1 - \(\dfrac{1}{64}\)

\(\dfrac{32}{33}\) = 1 - \(\dfrac{1}{33}\)

Vì \(\dfrac{1}{33}\)  > \(\dfrac{1}{64}\)

Vậy \(\dfrac{63}{64}\) > \(\dfrac{32}{33}\)

\(\dfrac{2020}{2019}\)= 1 + \(\dfrac{1}{2019}\)

\(\dfrac{2022}{2021}\) = 1 + \(\dfrac{1}{2021}\)

Vì  \(\dfrac{1}{2019}\) > \(\dfrac{1}{2021}\)

Vậy \(\dfrac{2020}{2019}\) > \(\dfrac{2022}{2021}\)

Answer 4

[Akai Haruma]

Lời giải:

$\frac{63}{64}=1-\frac{1}{64}> 1-\frac{1}{33}=\frac{32}{33}$
-------------------------

$\frac{2020}{2019}=1+\frac{1}{2019}> 1+\frac{1}{2021}=\frac{2022}{2021}$

Answer 5

[Nrưè Trrứ Danh]

cái này so sánh = phần bù / phần hơn

Answer 6

[Nrưè Trrứ Danh]

quy đồng 2019 với 2021 lâu lắm