A=(6-7/6)-(5+1/6)-(3-29/6)
A=29/6-31/6--11/6
A=29-31+11/6
A=9/6=3/2
\(A=\left(6-\frac{2}{3}+\frac{1}{2}\right)-\left(5+\frac{5}{3}-\frac{3}{2}\right)-\left(3-\frac{7}{3}+\frac{5}{2}\right)\)
\(A=\left(\frac{36}{6}-\frac{4}{6}+\frac{3}{6}\right)-\left(\frac{30}{6}+\frac{10}{6}-\frac{9}{6}\right)\)\(-\left(\frac{18}{6}-\frac{14}{6}+\frac{15}{6}\right)\)
\(A=\frac{35}{6}-\frac{31}{6}-\frac{19}{6}=\frac{-15}{6}=\frac{-5}{2}\)
Chúc bạn học tốt!
P/s : Còn nhiều cách nx đấy.
\(A=6-\frac{2}{3}+\frac{1}{2}-5-\frac{5}{3}+\frac{3}{2}-3+\frac{7}{3}-\frac{5}{2}\)
\(A=\left(6-5-3\right)+\left(\frac{-2}{3}-\frac{5}{3}+\frac{7}{3}\right)+\left(\frac{1}{2}+\frac{3}{2}-\frac{5}{2}\right)\)
\(A=-2+0-\frac{1}{2}\)
\(A=\frac{-5}{2}\)👌
K nha
\(A=6-\frac{2}{3}\) \(+\frac{1}{2}\)\(-5-\frac{5}{3}\)\(+\frac{3}{2}\)\(-3\)\(+\frac{7}{3}\)-\(\frac{5}{3}\)
\(A=\left(6-5-3\right)\)+( \(\frac{2}{3}-\frac{5}{3}+\frac{7}{3}\)) +(\(\frac{1}{2}+\frac{3}{2}-\frac{5}{2}\))
\(A=-2+0-\frac{1}{2}\)
\(A=\frac{-5}{2}\)