\(\dfrac{2018\times2020+2020\times2022}{2020\times4040}\\ =\dfrac{2020\times\left(2018+2022\right)}{2020\times4040}\\ =\dfrac{2020\times4040}{2020\times4040}\\ =1\)
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\(\dfrac{2018\times2020+2020\times2022}{2020\times4040}\)
\(=\dfrac{2020\times\left(2018+2022\right)}{2020\times4040}\)
\(=\dfrac{2018+2022}{4040}\)
\(=\dfrac{4040}{4040}\)
\(=1\)
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