Answer:
16/21
Step-by-step explanation:
[tex]\frac{3}{7}+\frac{1}{3}[/tex]
First, make them have a common denominator.
The least common factor of 7 and 3 is 21, so you can do
3/7 * 3/3 = 9/21
1/3 * 7/7 = 7/21
The new expression would be:
[tex]\frac{9}{21}+\frac{7}{21}[/tex]
[tex]\frac{16}{21}[/tex]
So the answer is 16/21