Answer:
[tex]\frac{39}{91}[/tex]
Step-by-step explanation:
Given
[tex]\frac{3}{7}[/tex]
To express as a rational number with 91 on the denominator.
91 ÷ 7 = 13
Thus multiply the numerator and denominator by 13, that is
[tex]\frac{3(13)}{7(13)}[/tex] = [tex]\frac{39}{91}[/tex]
