Question

Tính 

\(l\frac{1}{2}-\frac{1}{3}l+l1+\frac{1}{2}l\)

Answer 1

\(\left|\frac{1}{2}-\frac{1}{3}\right|+\left|1+\frac{1}{2}\right|\)

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

\(=1+1-\frac{1}{3}\)

\(=2-\frac{1}{3}\)

\(=\frac{6}{3}-\frac{1}{3}\)

\(=\frac{5}{3}\)

Answer 2

ta co |1/2 -1/3 | + |1 +1/2 | =1/2 -1/3 + 1+1/2

                                         = 1/2 +1/2 +1 -1/3

                                         =1+1  -1/3

                                          = 2-1/3

                                          =5/3