Question

thực hiệ phép tính  

A.\(\frac{1}{4}.\frac{2}{3}-\frac{3}{2}.\frac{1}{6}+\frac{1}{12}\)

B. \(2\frac{1}{3}+2\frac{5}{7}-1\frac{1}{3}\)

C.\(\left(2\frac{1}{3}+\frac{1}{9}\right):\left(-2\frac{1}{6}+0.25\right)+1\frac{11}{69}\)

CÁC BẠN LÀM ĐC CÂU NÀO THÌ LÀM NHA

Answer 1

\(\frac{1}{4}.\frac{2}{3}-\frac{3}{2}.\frac{1}{6}+\frac{1}{12}\)

\(=\frac{1}{6}+\frac{-1}{4}+\frac{1}{12}\)

\(=\frac{2}{12}+\frac{-3}{12}+\frac{1}{12}=\frac{0}{12}=0\)

~ Hok tốt ~

Answer 2

A, \(=\frac{1}{6}-\frac{5}{3}+\frac{1}{12}\)

\(=\frac{2}{12}-\frac{20}{12}+\frac{1}{12}\)

\(=\frac{2-20+1}{12}=-\frac{17}{12}\)

Hok tốt

Answer 3

\(2\frac{1}{3}+2\frac{5}{7}-1\frac{1}{3}\)

\(=\frac{7}{3}+\frac{19}{7}+\frac{-4}{3}\)

\(=\left(\frac{7}{3}+\frac{-4}{3}\right)+\frac{19}{7}\)

\(=1+\frac{19}{7}\)

\(=\frac{26}{7}\)

~ Hok tốt ~

Answer 4

c) \(\left(2\frac{1}{3}+\frac{1}{9}\right):\left(-2\frac{1}{6}+0,25\right)+1\frac{11}{69}\)

\(=\left(\frac{7}{3}+\frac{1}{9}\right):\left(\frac{-13}{6}+\frac{1}{4}\right)+\frac{80}{69}\)

\(=\frac{22}{9}:\left(\frac{-23}{12}\right)+\frac{80}{69}\)

\(=\frac{-88}{69}+\frac{80}{69}\)

\(=\frac{-8}{69}\)

Answer 5

\(\left(2\frac{1}{3}+\frac{1}{9}\right):\left(-2\frac{1}{6}+0,25\right)+1\frac{11}{69}\)

\(=\left(\frac{7}{3}+\frac{1}{9}\right):\left(\frac{-13}{6}+\frac{1}{4}\right)+\frac{80}{69}\)

\(=\frac{22}{9}:\frac{-23}{12}+\frac{80}{69}\)

\(=\frac{-88}{69}+\frac{80}{69}=\frac{-8}{60}\)

~ Hok tốt ~