Answer :
We need to find the rational numbers between -1 and 1 whose denominator is 3.
We know that a rational number can be written in the form:
[tex]\frac{p}{q},\text{ p and q are integers, q }\ne0[/tex]Observe that the number -1 can be written as:
[tex]-1=\frac{-3}{3}[/tex]Similarly, 1 can be written as:
[tex]1=\frac{3}{3}[/tex]The integers between -3 and 3 are: -2,-1,0,1,2
Therefore, the rational numbers with a denominator of 3 that lie between -1 and 1 inclusive are:
[tex]\frac{-3}{3},\frac{-2}{3},\frac{-1}{3},\frac{0}{3},\frac{1}{3},\frac{2}{3},\frac{3}{3},[/tex]