Use the GCF and the Distributive property to find the sum.

Notice that both numbers 26 and 29 are divisible by 13:
[tex]\begin{gathered} \frac{26}{13}=2 \\ \frac{39}{13}=3 \end{gathered}[/tex]thus, we can write the sum 26 + 39 like this:
[tex]26+39=13(2+3)[/tex]