Answer: 6 miles
Step-by-step explanation:
Since we are informed that Lexandra ran 2 4/5miles last weekend and that she ran 3 1/5miles thus weekend, the total miles that she ran in all will be gotten by adding both miles together. This will be:
= 2 4/5 + 3 1/5
= 6 miles
Therefore, she ran a total of 6 miles.