Answer:
1. 4 8/10 OR 4 4/5
2. His sister.
3. 1/10 of a pound.
Explanation:
Ok, first we'll find how much Matt has.
So; 3 2/5 + 1 4/10
3 4/10 + 1 4/10
4 8/10
So, Matt has 4 8/10 pounds or licorice, or 4 4/5.
In total, his sister has more. By 1/10 of a pound.
I hope this helped!