Ta có:
\(\dfrac{2006\times125+1000}{126\times2006-1006}\\ =\dfrac{2006\times125+1000}{125\times2006+2006-1006}\\ =\dfrac{2006\times125+1000}{125\times2006+\left(2006-1006\right)}\\ =\dfrac{2006\times125+1000}{2006\times125+1000}\\ =1\)
Vậy giá trị của \(\dfrac{2006\times125+1000}{126\times2006-1006}=1\)