Question

Thực hiện phép tính:

\(\dfrac{-1}{12}-\left(2\dfrac{5}{8}-\dfrac{1}{3}\right)\)

Answer 1

-19/8

Answer 2

\(\dfrac{-1}{12}-\left(2\dfrac{5}{8}-\dfrac{1}{3}\right)=-\dfrac{1}{12}-\dfrac{21}{8}+\dfrac{1}{3}=\dfrac{-2-21.3+8}{24}=-\dfrac{57}{24}=-\dfrac{19}{8}\)

Answer 3

\(\dfrac{-1}{12}-\dfrac{5}{4}+\dfrac{1}{3}=\dfrac{-1}{12}-\dfrac{15}{12}+\dfrac{4}{12}=-1\)

Answer 4

\(=\dfrac{-2}{24}-\left(\dfrac{63}{24}-\dfrac{8}{24}\right)=\dfrac{-19}{8}\)

Answer 5

\(\dfrac{-1}{12}-\left(2\dfrac{5}{8}-\dfrac{1}{3}\right)=\dfrac{-1}{12}-\dfrac{55}{24}=\dfrac{-57}{24}\)

Answer 6

\(\dfrac{-1}{12}-\left(2\dfrac{5}{8}-\dfrac{1}{3}\right)\)

\(=\dfrac{-1}{12}-2\dfrac{5}{8}+\dfrac{1}{3}\)

\(=\dfrac{-1}{12}+\dfrac{-21}{8}+\dfrac{1}{3}\)

\(=\dfrac{-8}{96}+\dfrac{-252}{96}+\dfrac{1}{3}\)

\(=\dfrac{-260}{96}+\dfrac{1}{3}\)

\(=\dfrac{-65}{24}+\dfrac{1}{3}\)

\(=\dfrac{-65}{24}+\dfrac{8}{24}\)

\(=\dfrac{-57}{24}\)

 

Answer 7

\(=\dfrac{-19}{8}\)