First, we have to calculate how much ribbon is left over on each roll in yards. Write it like this:
3/5(25) = 15
One roll has 15 yards of ribbon left. However, there are 3 rolls left over:
3(15) = 45
She has 45 yards of ribbon left, which, unfortunately, is not enough for her craft project. To meet the project's ribbon requirements, she will need to purchase another roll (25 yds) of ribbon.