Question

A=(6-2/3+1/2)-(5+5/3-3/2)-(3-7/3+5/2)

Answer 1

tính nhanh hay tính giá trị biểu thức

Answer 2

\(A=\left(6-\frac{2}{3}+\frac{1}{2}\right)-\left(5+\frac{5}{3}-\frac{3}{2}\right)-\left(3-\frac{7}{3}+\frac{5}{2}\right)\)

=\(\left(\frac{36}{6}-\frac{4}{6}+\frac{3}{6}\right)-\left(\frac{30}{6}+\frac{10}{6}-\frac{9}{6}\right)-\left(\frac{18}{6}-\frac{14}{6}+\frac{15}{6}\right)\)

=\(\frac{35}{6}-\frac{31}{6}-\frac{19}{6}=-\frac{15}{6}\)