Answer:
1/8
Explanation:
Hello! In this problem, they are asking what fraction of the total distance to her grandmother's house was traveled on Sunday.
You can solve this question in a few steps:
1. We already know that she traveled 5/8 of the way to her grandma's house so now we know that there is 3/8 of the distance left to go.
2. In order to find how much she traveled, you can use the strategy below
Strategy
----------------
You can multiply 1/3 and 3/8 together to find out how much she traveled on Sunday:

This can be simplified to 1/8
So now we know our answer because out of the total amount which she had to drive which was
(meaning the total distance was split into 8 parts), out of those 8 parts, she traveled 1 of those parts on Sunday
Hope this helped :)