Why do i get decimal on my final answer?

The final asnwer should be 200, 1400 and 600. But why there is decimal in my final matlab answer? Did I left something?

A = [ 1 1 1 ; 0.06 0.08 0.09 ; 3 0 -1]

A =1.0000    1.0000    1.0000
    0.0600    0.0800    0.0900
    3.0000         0   -1.0000

>> B= [ 2200 ; 178 ; 0]

B = 2200
         178
           0

>> AB = [ A B ]

AB =1.0e+03 *

    0.0010    0.0010    0.0010    2.2000
    0.0001    0.0001    0.0001    0.1780
    0.0030         0   -0.0010         0

>> rref(AB)

ans =1.0e+03 *
 0.0010         0         0    0.2000
         0    0.0010         0    1.4000
         0         0    0.0010    0.6000

Answer 1

[Walter Roberson]

Give the command

format long g

and now ask to display the answers again.

[Levi]

Oit works. Thanks mate.