Đáp án:
`7/15`
Giải thích các bước giải:
(\(\dfrac{-5}{11}\) `+` `7/15` + `27/19`) `+` (\(\dfrac{-12}{22}\) `+` \(\dfrac{-16}{38}\) )
= \(\dfrac{-5}{11}\) `+` `7/15` + `27/19` + \(\dfrac{-6}{11}\) `+` \(\dfrac{-8}{9}\)
= (\(\dfrac{-5}{11}\) `+` \(\dfrac{-6}{11}\)) `+` (`27/19` `+` \(\dfrac{-8}{19}\)) `+` `7/15`
= \(\dfrac{-11}{11}\) `+` `19/19` `+` `7/15`
`= -1 + 1 +` `7/15`
`= 0 +` `7/15`
`=` `7/15`
CHÚC BẠN HỌC TỐT!
