14 tháng 1 2022 lúc 11:55
\(\dfrac{-1}{2}\);\(\dfrac{-13}{25}\);\(\dfrac{-1}{2}\);\(\dfrac{-13}{25}\);\(\dfrac{-1}{2}\)
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\(\dfrac{12}{-24}=\dfrac{-1}{2}\)
\(\dfrac{-13}{25}=\dfrac{-13}{25}\)
\(=\dfrac{24}{-48}=\dfrac{-1}{2}\)
\(\dfrac{-39}{75}=\dfrac{-13}{25}\)
\(\dfrac{132}{-264}=\dfrac{-1}{2}\)
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