Answer:
[tex]\frac{13}{a}[/tex]
Step-by-step explanation:
13 × [tex]\frac{1}{a}[/tex] = [tex]\frac{13}{1}[/tex] × [tex]\frac{1}{a}[/tex]
Make all the numbers into fractions first for easier calculations.
[tex]\frac{13}{1}[/tex] × [tex]\frac{1}{a}[/tex] = [tex]\frac{13}{a}[/tex]
Directly multiply the fractions.