Question

7/12-(5/12-5/6)

Answer 1

\(\dfrac{7}{12}-\left(\dfrac{5}{12}-\dfrac{5}{6}\right)=\dfrac{7}{12}-\dfrac{5}{12}+\dfrac{5}{6}\) = \(\left(\dfrac{7}{12}-\dfrac{5}{12}\right)+\dfrac{10}{12}\)= \(\dfrac{2}{12}+\dfrac{10}{12}\)

= \(\dfrac{12}{12}\)= 1

Answer 2

1

Answer 3

\(\frac{7}{12}-\left(\frac{5}{12}-\frac{5}{6}\right)\)

\(=\frac{7}{12}-\frac{5}{12}+\frac{5}{6}\)

\(=\frac{2}{12}+\frac{5}{6}\)

\(=\frac{1}{6}+\frac{5}{6}\)

\(=\frac{6}{6}=1\)

Answer 4

\(\dfrac{7}{12}-\left(\dfrac{5}{12}-\dfrac{5}{6}\right)=\dfrac{7}{12}-\dfrac{-5}{12}=\dfrac{12}{12}=1\)

Answer 5

Phép này pn cứ tính như bth là đc nhs !

\(\dfrac{7}{12}-\left(\dfrac{5}{12}-\dfrac{5}{6}\right)\)

\(=\dfrac{7}{12}-\dfrac{-5}{12}=1\)