Question

Consider the following addition in base 7 complete the 1st 2 step of the additional below

Answer 1

We are to complete the addition in base seven

$\begin{gathered} 24_{\text{seven }} \\ + \\ 65_{seven} \\ ---- \\ ---- \end{gathered}$

Computing the first part

$4_{\text{seven}}+5_{\text{seven}}=9_{\text{ten}}$

Converting base 10 to base 7

This gives

$9_{\text{ten}}=1\times7+2\times1=12_{seven}$

Hence

$4_{\text{seven}}+5_{\text{seven }}=12_{seven}$

Therefore the answer is

$12_{\text{seven}}$