Question

6/5x3/8+5/8x6/5-4/5

 

Answer 1

=6/5x{3/8+5/8}-4/5

=6/5x1-4/5

=6/5-4/5=2/5

Answer 2

ta có A = 6/5( 3/8+5/8) - 4/5 

           = 6/5*1 - 4/5 

           =  6/5 - 4/5 

           = 2/5

      Vậy A = 2/5