Answer :
[tex]\frac{number\ of\ tickets\ Janne}{number\ of\ tickets\ Jake}=\frac{12}{39}=\frac{12:3}{39:3}=\frac{4}{13}\\\\Answer:\boxed{D.\ \frac{4}{13}}[/tex]
jake:Jeanie
39:12
39=3*13
12=3*2*2
so (3*13)/(3*2*2)
we can factor out the 3/3 or 1
so 13/4
jake:Jeanie is 13/4
39:12
39=3*13
12=3*2*2
so (3*13)/(3*2*2)
we can factor out the 3/3 or 1
so 13/4
jake:Jeanie is 13/4