Question

\(-\frac{1}{2}+\frac{7}{6}+\left(-\frac{7}{8}\right)\))

Giải chi tiết->tick ok?

Answer 1

\(-\frac{1}{2}+\frac{7}{6}+\left(-\frac{7}{8}\right)=-\frac{1}{2}+\frac{7}{6}-\frac{7}{8}\)\(\frac{7}{8}=\frac{-12}{24}+\frac{28}{24}-\frac{21}{24}\)=\(\frac{-12+28-21}{24}=\frac{-5}{24}\)

Answer 2

LHL mik đi, mik tl rồi, bảo đảm đúng

Answer 3

\(-\frac{1}{2}+\frac{7}{6}+\left(-\frac{7}{8}\right)=\frac{-4}{8}+\frac{7}{6}+\left(\frac{-7}{8}\right)=\frac{-4}{8}+\frac{-7}{8}+\frac{7}{6}=\frac{-11}{8}+\frac{7}{6}=\frac{-33}{24}+\frac{28}{24}=\frac{-5}{24}\)