We must solve
[tex]\frac{3\cdot8}{4+2}[/tex]This division is equal to
[tex]\frac{3\cdot8}{6}[/tex]because 4+2=6. Now, we can rewrite the term on top as 3*2*4 because 8=2*4. Therefore, we can write
[tex]\frac{3\cdot2\cdot4}{6}[/tex]and now, we can see that 3*2=6. Therefore, this fraction is equal to
[tex]\frac{6\cdot4}{6}[/tex]Finally, since 6/6 is equal to 1, the result is 4.