Question

Answer 1

\(\dfrac{10}{50}+\dfrac{-45}{50}+\dfrac{-14}{50}=\dfrac{-49}{50}\)

Answer 2

\(\dfrac{1}{5}+\dfrac{-9}{10}+\dfrac{-7}{25}=\dfrac{-49}{50}\)

Answer 3

\(\dfrac{-49}{50}\)

Answer 4

−49/50

Answer 5

\(\dfrac{10}{50}+\dfrac{-45}{50}+\dfrac{-14}{50}=\dfrac{-49}{50}\)

Answer 6

\(\dfrac{1}{5}+\dfrac{-9}{10}+\dfrac{-7}{25}=(\dfrac{2}{10}+\dfrac{-9}{10})+\dfrac{-7}{25}=\dfrac{-7}{10}+\dfrac{-7}{25}=\dfrac{-35}{50}+\dfrac{-14}{50}=\dfrac{49}{50}\)

Mik nghĩ là đr đấy chúc bn học tốt\(\sqrt{ }\)