Does the sum of 1/5 + 1/5 equals 2/5 make sense in situations

It equals 2/5.

Step-by-step explanation:

Basically you ignore the 5 because it stays the same. All you have to add are the numerators. 1+1=2. So it would be 2/5.

A scenario:

2 pizzas cut into 5th's. Everyone ate 4 in each and kept one slice. When you add those 2 together you would be 2 slices.