3/7 + 1/3 is equivalent to

16/21

Step-by-step explanation:

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:

So the answer is 16/21

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz