\(\dfrac{2020}{2019}-\dfrac{2019}{2018}+\dfrac{1}{2019}x2018\)
\(=\dfrac{2020}{2019}-\dfrac{2019}{2018}+\dfrac{2018}{2019}=2-\dfrac{2019}{2018}=\dfrac{2017}{2018}\)
\(\dfrac{2020}{2019}-\dfrac{2019}{2018}+\dfrac{1}{2019}x2018\)
\(=\dfrac{2020}{2019}-\dfrac{2019}{2018}+\dfrac{2018}{2019}=2-\dfrac{2019}{2018}=\dfrac{2017}{2018}\)
A= 2020/2019 - 2019/2018 + 1/2018*2019 giúp mik vs
tính nhanh
2017/2018-2019/2018-2020/2019. các bạn ơi giúp mình giải câu này với
2020*2018+2019
__________________
2019*2019+2018
Tính nhanh
Tính nhanh 2016/2017 nhân 2017/2018 nhân 2018/2019 nhân 2019/2020
A= 2/2018*2020 + 2021/2020 - 2019/2018
giup em voi
A = 2018 + 2019/2019 + 2020 và B = 2018/2019 + 2019/2020
Tính nhanh :
a,2017 x 2021 - 4031 / 2020 + 2017 x 2018
b,2017 x 2019 + 1009 / 2019 x 4035 - 1
cho A = 2018/2019 + 2019/2020+2020/2018
so sánh A với 3
So sánh
\(\frac{2018}{2019}+\frac{2019}{2020}+\frac{2020}{2018}\) với 3