Answer:
4
Step-by-step explanation:
In this example, Isabella is using one (1) ribbon to make a bookmark. Each bookmark is made up of 1/4 of ribbon. 1/4 means that the ribbon is divided in four parts, and each one of these constitutes a ribbon. In other words:
1/4 + 1/4 + 1/4 + 1/4 =
4/4
= 1
Therefore, Isabella would be able to make 4 bookmarks with her ribbon.
