`11/12 - (5/6 - 1/4)`
`= 11/12 - 10/12 + 3/12`
`= (11 - 10 + 3)/12`
`= 4/12`
______________________
`11/12 + (5/6 - 1/4)`
`= 11/12 + 10/12 - 3/12`
`= (11 + 10 - 3)/12`
`= 19/12`
Đúng 0
Bình luận (1)
a)\(=\dfrac{11}{12}-\dfrac{5}{6}+\dfrac{1}{4}=\dfrac{11}{12}-\dfrac{10}{12}+\dfrac{3}{12}=\dfrac{4}{12}=\dfrac{1}{3}\)
b)\(=\dfrac{11}{12}+\dfrac{5}{6}-\dfrac{1}{4}=\dfrac{11}{12}+\dfrac{10}{12}-\dfrac{3}{12}=\dfrac{18}{12}=\dfrac{3}{2}\)
Đúng 1
Bình luận (0)