Question

tính:
a) \(\dfrac{-5}{13}\)+\(\dfrac{8}{13}\)       b) \(\dfrac{5}{31}\)+\(\dfrac{-22}{31}\)        c)  \(\dfrac{-13}{43}\)+\(\dfrac{-40}{43}\)

d) \(\dfrac{-3}{29}\)-\(\dfrac{16}{58}\)       e) \(\dfrac{8}{40}\)-\(\dfrac{-36}{45}\)          f) \(\dfrac{-8}{18}\)-\(\dfrac{-15}{27}\)      g)(-2)+\(\dfrac{-5}{8}\)

Answer 1

ai có thể chỉ giúp tôi được ko vì tôi cần rất gấp

Answer 2

\(a,\dfrac{-5}{13}+\dfrac{8}{13}=\dfrac{3}{13}\\ b,\dfrac{5}{31}+\dfrac{-22}{31}=\dfrac{-17}{31}\\ c,\dfrac{-13}{43}+\dfrac{-40}{43}=\dfrac{-53}{43}\\ d,\dfrac{-3}{29}-\dfrac{16}{58}=\dfrac{-11}{29}\\ e,\dfrac{8}{40}-\dfrac{-36}{45}=1\\ f,\dfrac{-8}{18}-\dfrac{-15}{27}=\dfrac{1}{9}\\ g,\left(-2\right)+\dfrac{-5}{8}=\dfrac{-21}{8}\)