Answer:
[tex]\dfrac{78y}{18y}[/tex]
Step-by-step explanation:
Multiplying by 1 is the same as multiplying by a fraction with the same numerator and denominator.
[tex]\dfrac{13}{3}=\dfrac{13}{3}\times\dfrac{6y}{6y}=\boxed{\dfrac{78y}{18y}}[/tex]