2/7:5/11

To solve this problem, you need to find the sum of 2/7 and 5/11.

To find a common denominator, you need to determine the least common multiple (LCM) of 7 and 11, which is 77.

Now, you can convert both fractions to have the same denominator of 77:

2/7 * 11/11 = 22/77

5/11 * 7/7 = 35/77

Now that both fractions have the same denominator, you can add them together:

22/77 + 35/77 = 57/77

So, 2/7 + 5/11 = 57/77.