2/7:5/11

To add the two fractions 2/7 and 5/11, you need to find a common denominator. The common denominator for 7 and 11 is 77.

To convert 2/7 to have a denominator of 77, you need to multiply both the numerator and denominator by 11. This gives you 22/77.

To convert 5/11 to have a denominator of 77, you need to multiply both the numerator and denominator by 7. This gives you 35/77.

Now that both fractions have a common denominator of 77, you can add them together:

22/77 + 35/77 = (22 + 35) / 77 = 57/77.

Therefore, the sum of 2/7 and 5/11 is 57/77.